OLIVER S. FLINT, Studies of Neotropical

Caddisflies, X:

Leucotrichia and

Related Genera from J k

r

 North and Central

, America (Trichoptera:

Hydroptilidae)

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NUMBER 60

Oliver s. Flint, jr. Studies of Neotropical

Caddisflies, X:

Leucotrichia and

Related Genera from

North and Central

America (Trichoptera:

Hydroptilidae)

SMITHSONIAN INSTITUTION PRESS

CITY OF WASHINGTON

I97O
ABSTRACT

Flint, Oliver S., Jr. Studies of Neotropical Caddisflies, X: Leucotrichia and Related

Genera from North and Central America (Trichoptera: Hydroptilidae). Smithsonian

Contributions to Zoology, 60:1-64, 1970.—The history of the suprageneric classification within the Hydroptilidae is reviewed and the subfamily Leucotrichinae is established for an exclusively New World group of genera: Leucotrichia Mosely, Peltopsyche

Miiller, Zumatrichia Mosely, Costatrichia Mosely, Abtrichia Mosely, Acostatrichia

Mosely, Betrichia Mosely, Alisotrichia Flint, and Anchitrichia, new genus. Five genera,

all restricted to North and Central America and the West Indies, are keyed and

characterized, both for the adult and larval stage. Leucotrichia, the type genus of the

subfamily, contains ten species, four described as new, and is known from all sections.

Costatrichia contains six species, four described as new, and is known from Central

America only. Anchitrichia, containing only spangleri, new species, is described as new

and is known from throughout Central America. Zumatrichia, containing nineteen

species, thirteen described as new, is the largest genus and is abundant in Central

America and the Lesser Antilles, with one species Z. notosa (Ross) (new combination)

found in Montana. Alisotrichia contains twelve species, five described as new, and is

known from Central America and the West Indies. Each species is keyed, figured,

described, its affinities discussed, and its distribution given. The larvae are described

for the species for which this stage is known.

Official publication date is handstamped in a limited number of initial copies and is recorded

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Oliver s. Flint, jr. Studies of Neotropical

Caddisflies, X:

Leucotrichia and

Related Genera from

North and Central

America (Trichoptera:

Hydroptilidae)

Most species of Hydroptilidae, commonly known as

the microcaddisflies, are no longer than a millimeter

or two. Because of their small size, they are usually

ignored by collectors, and as a consequence a misleading picture of their true diversity is presented in

many parts of the world. In those countries where they

have been extensively collected, however, they comprise a large portion of the trichopterous fauna both

in number of species and abundance of individuals.

In the New World as the hydroptilids are being more

intensively studied, they are found to be a very large

family; for instance, on some of the Lesser Antillean

islands (Flint, 1968b) over fifty percent of the species

of Trichoptera are Hydroptilidae.

Leucotrichia and allied genera is one group of

hydroptilids that has a great diversity of species, especially in Mesoamerica where the species breed in fastflowing streams and rivers. In North America and the

West Indies, in contrast, there are only a few species.

Most of the mountainous regions of northern and western South America have not been well collected, but

what little evidence is available suggests that here also

the fauna is much reduced. The highlands of southOliver S. Flint, Jr., Department of Entomology, National

Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560

eastern Brazil, however, are apparently well populated

with related genera and species (Mosely, 1939).

The present study is intended to review the few

known species, to describe the many new species, and

to bring together the meager information on the biology and immature stages of Leucotrichia and related

genera from North and Central America (including

Panama) and the West Indies.

I wish to thank D. E. Kimmins of the British

Museum (Natural History) and H. H. Ross of the Illinois Natural History Survey for the loan of types

from their respective collections.

The majority of the material reported on in this

paper was collected by me in Central America on trips

made possible by grant GB-2616 from the National

Science Foundation. The collecting trip to Jamaica

and the Lesser Antilles in 1963 was made possible by

grant J^481 from the American Philosophical Society. Additional valuable Central American material

was collected by P. J. Spangler and W. D. Duckworth

during their trips into Latin America. H. H. Ross

loaned material collected in Costa Rica by R. T. Allen.

I am indebted to the staff artists of the Department

of Entomology, Smithsonian Institution, for their fine

illustrations—Mr. Andre D. Pizzini for the habitus

views of the larvae, and Mrs. Elsie M. Froeschner for

the detailed drawings of the larval head capsules.

1
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

Classification

The suprageneric classification of the Hydroptilidae is

very unsatisfactory. The few preliminary attempts to

divide the family have been based primarily on the

distinctive larval morphology and habits of one or a

few genera in a particular region of the world. Although

the technique has undoubtedly resulted in the segregation of valid suprageneric units, it has also resulted in

the typical subfamily remaining a catchall of genera

that were not or could not be placed. A rectification of

this situation is still not possible; however, a review will

be useful as background for further action.

Nielsen (1948) proposed the subfamilies Orthotrichinae (for Orthotrichia and Ithytrichia) and Hydroptilinae (for Agraylea, Hydroptila, and Oxyethira)

based on larval morphology and behavior. Although

this action assigned all the Danish genera to two natural units, none of the extraterritorial genera could

be assigned, and these genera must therefore fall

into the Hydroptilinae, rendering this subfamily very

heterogeneous.

Botosaneanu (1956) established the Stactobiinae for

Stactobia and "les genres etroitement apparentes

{Stactobiella Mart, etc.)." The larvae of Stactobiella

(Ross, 1944, as Tascobia), however, show that this

genus is not related to Stactobia, but should probably

be placed in the Hydroptilinae (sensu Nielsen). Ulmer

(1957) described the larvae of a number of Indonesian genera, of which those of Plethus and Lamongonotrichia clearly show that these genera belong in the

Stactobiinae.

The family was again divided in 1956, this time by

Ross, but into the Ptilocolepinae (for Ptilocolepus and

Paleagapetus) and the Hydroptilinae for all the remaining genera. The Ptilocolepinae appears to be a

natural unit (see also Flint, 1962), but the Hydroptilinae is still very heterogeneous.

On the basis of larval morphology and habits, one

of the most aberrant units remaining in the Hydroptilinae (no matter how defined) is that of Leucotrichia and related genera. To accept this distinctive

unit I propose the subfamily Leucotrichinae; the type

genus is Leucotrichia Mosely (1934). The subfamily

will also contain Peltopsyche Mixller (1880), Zumatrichia Mosely (1937), Costatrichia Mosely (1937),

Abtrichia Mosely (1939), Acostatrichia Mosely

(1939), Betrichia Mosely (1939), Alisotrichia Flint

(1964), and Anchitrichia, new genus, all from the New

World.

I can give no single characteristic by which the

adults can be distinguished without fail from those of

other subfamilies. A number of characteristics are diagnostic, however, when present: reduction of ocelli to

two, presence of modified setae, flaps or sclerites on the

head (but not associated with the posterior warts),

modifications of the antennal segments especially the

basal ones, or the presence of a reflexed costal cell.

There is also something characteristic in the form of

the male genitalia, although this is hard to define

verbally.

The larvae are very different from those of all other

New World genera, although they are similar to those

of certain exotic genera (i.e., Stactobiinae). From all

other known New World larvae they differ in possessing large sclerites on 8 or 9 abdominal segments, and

from all except Paleagapetus, in having only the pronotum (andrarely themesonotumandmetanotum) divided longitudinally, in having all legs short and stout

and rather similar in structure, and in having the submentum divided. As mentioned above they are very

similar to the larvae of the Stactobiinae, but apparently

the larvae of the latter differ in having all thoracic

nota divided.

The subfamily is, however, absolutely distinctive in

the type and use made of the larval and pupal shelter—

the characteristics that primarily cause me to establish

the subfamily. In none of the genera for which the

characteristics are known is the larval shelter more

than a dorsal covering nor is it ever movable, and

conversely, no genus elsewhere possesses these

characteristics.

Within the subfamily there are two definite units,

one containing Alisotrichia, and the other all the remaining genera (based on supposition in some genera) . Alisotrichia is distinctive on the shape of the

aedeagus in the male, seventh tergum and bursa copulatrix in the female, fusiform shape of the larvae,

and type of larval shelter. The last characteristic is

most interesting and merits more mention here. The

larva appears to be free-living up to the end of the last

instar, at which time it spins a simple, silken, dorsal

covering with a few small lateral openings (perhaps

for water circulation). It then immediately constructs

a complete central cocoon, enclosing itself for pupation. I have seen no indication that the larva ever

lives as an active, feeding organism within this shelter.

The second and possibly more advanced stage of

shelter construction is typified by Leucotrichia. In this
NUMBER 60

and related genera the larva constructs at or near the

beginning of the last instar a shelter that contains an

opening at both ends. Within this shelter the larva

lives and grows with its middle abdominal segments

becoming greatly distended. It extends its head and

slender segments out of one opening or the other to

feed, but otherwise is restricted to the site of the shelter

(Lloyd, 1915). At the end of the instar the inner cocoon is spun and pupation takes place.

The following keys are only to those genera and

species known to occur in North and Central America

and the West Indies. There seems to be a typical form

to the male genitalia in most genera that is difficult

to state in a few words: the figures will convey this

form most clearly. I have made no attempt to assign females to most species, because so few can be

unequivocably assigned to the proper male.

Key to Genera of Leucotrichinae

ADULTS

1. Males with aedeagus simply constricted at midlength; female with dorsum of seventh segment

variously modified, with a simple ringlike bursa Alisotrichia

Males with aedeagus not only constricted at midlength, but also bearing a complex dorsal

structure here; females with seventh tergum simple, bursa complex with sclerotized

supports 2

2. Antenna of male with basal segment enlarged and flattened and covering half of. face;

ocelli 2 Zumatrichia

Basal antennal segment terete (segments beyond may be flattened); ocelli 2 or 3 3

3. Lateral penis sheaths small, semimembranous; subgenital plate connected dorsally to tenth

tergites, produced into a ventral process which at base of claspers articulates with a structure

lying in a dorsomesal groove of approximate claspers Leucotrichia

Lateral penis sheaths generally large, produced posteriad, sclerotized; subgenital plate generally

lacking, or of different structure; claspers widely separated 4

4. Ocelli 2; clasper with several stout apicodorsal setae Anchitrichia

Ocelli 3; clasper without enlarged setae Costatrichia

LARVAE*

1. Abdominal segments not greatly enlarged Alisotrichia

Middle abdominal segments greatly enlarged 2

2. Anterolateral angle of pronotum produced anteriorly Anchitrichia

Anterolateral angle of pronotum not produced 3

3. Ninth tergite with short enlarged setae laterally, abdominal tergites 2-7 with 2 central pores.

Zumatrichia

Ninth tergite generally lacking enlarged setae, but when present arranged in a transverse

anterior band; abdominal tergites without central pores Leucotrichia

*Larvae of Costatrichia unknown, but probably with enlarged abdominal segments.

Genus Leucotrichia Mosely

Leucotrichia Mosely, 1934, p. 157.—Ross, 1944, p. 120.—-

Denning, 1956, p. 255. [Type species: Leucotrichia

melleopicta Mosely, 1934, by original designation.]

ADULT.—Ocelli 2 or 3. Spurs 1, 3, 4. Pronotum with

anterior surface heavily sclerotized, elongate. Mesoscutellum with a transverse suture; metascutellum pentagonal. Male genitalia: Eighth sternum produced

posteroventrally with a posteromesal division. Ninth

segment completely open ventrally; posterolateral

margin with a row of stout setae. Tenth tergite (?)

a heavily sclerotized trianguloid plate, whose mesal

face braces the aedeagus laterally. Subgenital plate

connected dorsally to ventral angles of tenth tergites

and forming the ventral support of the aedeagus, produced ventrally as a narrow, elongate, mesal sclerite

extending into the basal part of the claspers where it

articulates with a structure lying in the dorsomesal

groove of the claspers. Lateral penis sheaths, small,

semimembranous. Claspers elongate, generally fused or

approximate mesoventrally, generally with a subapical spine or tooth on each side dorsally. Aedeagus

with an elongate basal tube, constricted at midlength,
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

where it bears a complex structure which bears a pair

of basally directed processes and a basal loop; apically

with a large membranous sac which generally bears a

pair of small spines.

LARVA.—Stem of frontoclypeal suture developed,

arms mostly obsolete, tentorial pits rather indistinct.

Anterior margin of frontoclypeus generally straight,

rarely lobate; posterior portion and adjacent genae

generally rugose. Pronotum divided longitudinally,

anterolateral angles not produced. Femora with basodorsal setae spiniform. Abdomen with segments 5 and 6

abruptly enlarged, 7 slightly smaller. Abdomen with

9 tergites: first transverse, reaching onto side of segment ; tergites 2-7 broad, widest mesally, without central pores, occupying only a small portion of each

segment; eighth tergite larger, about 3 times as broad

as long; ninth tergite shield shaped, rarely with some

enlarged basal setae. Segment 1 without lateral

sclerites, segments 2-7 with two, segment 8 with 1.

Anal claw with dorsal seta either pale or black.

Although the antennae, number of ocelli, and dorsal

structure of the head may vary greatly between the

species, the general form of the male genitalia and

the larvae serve to unite the species herein placed. The

species may be divided into two groups based on the

presence of either two or three ocelli in the male. The

first group, the melleopicta group, has 1 or 2 large

areas of greenish (or whitish) setae on the forewings,

and 3 ocelli in both sexes, the males possess a process

from the seventh sternum, and, except in chiriquiensis,

an unmodified head. To this group belong: melleopicta

Mosely, viridis Flint, limpia Ross, tubifex Flint, gomezi,

new species, and chiriquiensis, new species. The second,

the pictipes group, has spots or linear greenish or

whitish marks on the forewing, and in the male 2

ocelli, the head is generally modified (simple in imitator) , a brush of setae from the seventh sternum

(fairchildi has a point). To this group belong: imitator, new species, sarita Ross, pictipes (Banks), and

fairchildi, new species.

The larvae are known for many species of the genus

(unknown only in melleopicta, viridis, and fairchildi).

There are observable differences between the larvae of

all species, although the separation of sarita and

pictipes is based on a comparative characteristic that

is not altogether satisfactory.

Key to Species of Leucotrichia

ADULTS

1. With 3 ocelli melleopicta group 2

With 2 ocelli pictipes group 7

2. Head with a pair of large internal pouches and a frontal shelf bearing flattened setae; basal

antennal segment elongate chiriquiensis

Head without pouches; antennae simple 3

3. Claspers in lateral aspect less than twice as long as broad; eighth sternum bilobed, margin with

short, broad setae tubifex

Claspers at least twice as long as broad; eighth sternum either squarely truncate or deeply

divided and without specialized setae 4

4. Eighth sternum with posterior margin squarely truncate gomezi

Eighth sternum with posterior margin deeply divided on midline 5

5. Aedeagus with basal loop attached to a pair of long rods limpia

Aedeagus either lacking basal loop, or loop attached directly to midlength complex 6

6. Ninth segment longer than wide in ventral aspect, with ventral margin much more deeply

indented than dorsal margin viridis

In ventral aspect, the ninth segment slightly wider than long, dorsal and ventral margins

almost equally indented melleopicta

7. Head without modifications imitator

Head with specially sclerotized regions, flaps, and often with special setae 8

8. Head with a longitudinally depressed, strongly sclerotized central area bordered by a setate

area, but without special pouches or lobes; antennae simple sarita

Head with setate lobes and/or pouches; some antennal segments flattened 9

9. Seventh sternum with a process fairchildi

Seventh sternum with a brush of setae only pictipes
NUMBER 60

LARVAE

1. Anal claw with dorsal seta black and enlarged 2

Anal claw with dorsal seta pale and normal 3

2. Head capsule without rugose or papillate regions chiriquiensis

Head capsule with a conspicuous crescentic band of large rugosities between eyes limpia

3. Right mandible with a mesal tooth 4

Right mandible without a mesal tooth 5

4. Frontoclypeus with a pair of submesal lobes on anterior margin and a reticulate area posteriorly.

tubifex

Frontoclypeus barely sinuate anteriorly, no reticulate area gotneti

5. Head with a conspicuous pattern of pale and dark areas imitator

Head nearly unicolorous 6

6. Anterolateral seta of mesonotum and metanotum enlarged and generally darkened sarita

Anterolateral seta small and pale pictipes

Leucotrichia melleopicta Mosely

FIGURES 2, 9, 10, 236

Leucotrichia melleopicta Mosely, 1934, p. 46; 1937, p. 151.—

Ross, 1944, p. 120.—Fischer, 1961, p. 83.

This species is apparently quite closely related to

viridis, but because the type abdomen is slightly

crushed on a slide, it is impossible to be certain of its

exact relationship. The ninth segment seems proportionately much broader and with both the dorsal and

ventral margins almost equally indented in melleopicta, in addition the aedeagus, especially with its

paired, long apical spines, seems very different.

ADULTS.—Length of forewing, 2 mm. Forewing

with a central area of whitish hairs (possibly green

when fresh). Ocelli 3; head dorsally wholly seta bearing, unmodified; antenna simple. Male genitalia:

Seventh sternum with a long process, slightly enlarged

apically. Eighth sternum with a deep V-shaped ventromesal excision, lateral angles with long setae. Ninth

segment short, about as long as broad in ventral aspect; anterodorsal indentation about as deep as ventral; posterior margin ventrolaterally with a row of

stout setae. A heavily sclerotized apicolateral plate,

quadrate in ventral aspect; from basomesal angles giving rise to a plate with a large, circular, basal opening.

Claspers indistinct, but apparently about twice as long

as broad, fused mesally, with a strong dorsolateral seta.

Aedeagus with a pair of strong, elongate apicomesal

spines; a dorsal structure with a U-shaped apicomesal

excision and deeply divided basomesally; subapically

a collarlike ventral structure, laterally with a lightly

sclerotized enlargement bearing basally a slender loop.

MATERIAL.—MEXICO: TABASCO: Teapa, March,

H. H. Smith, c? holotype, BM (NH).

Leucotrichia viridis Flint

FIGURES 11-13, 236

Leucotrichia viridis Flint, 1967, p. 10.

This species seems to be most closely related to melleopicta, but to differ in a number of characteristics in

the male. The proportionately longer and narrower

ninth segment, which is much more deeply divided

ventrally than dorsally, is a most noticeable difference;

however, seeming differences exist in the structure of

the aedeagus and the claspers as well.

ADULT.—Length of forewing, 3 mm. Color basically

gray; antennae with a subapical series of pale segments, face and tegulae with green hairs, forewing

green except for apex. Ocelli 3; head dorsally wholly

seta bearing, unmodified; antenna simple. Male genitalia: Seventh sternum with a long, posteromesal

process, spatulate in ventral aspect. Eighth sternum

produced laterally, with a broadly U-shaped apicomesal excision. Ninth segment distinctly longer than

broad in ventral aspect, with ventral surface much

more deeply divided than dorsal; posterolateral margin

bordered with a row of long setae. Subgenital plate

narrow in ventral aspect, with an ovoid basal opening.

Clasper long and slender, with a dorsal tooth at midlength. Aedeagus membranous at apex, with a pair of

apicolateral points and a ventral scoop; midventral

complex with a pair of basal rods; a simple basal

tubular portion.

MATERIAL.—MEXICO: VERA CRUZ: Fortin de las

Flores, 17 May 1964, Blanton et al., 4tf 7 $ . CHIAPAS :

Soyalo, Route 195, km. 24, 10 Aug. 1967, O. S. Flint,

Jr., 1 (without abdomen). GUATEMALA: IZABAL:

Las Escobas, near Matias de Galvez, 14-16 Aug. 1965,

Flint, Spangler, and Ortiz, c? holotype, $ allotype,
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

47 o* 4 $ paratypes. ESCUINTLA: Escuintla, 10 Aug.

1965, P. J. Spangler, 5? . EL SALVADOR: SAN

SALVADOR: Lago Ilopango, 5 Aug. 1967, O. S. Flint,

Jr., 1 ? . PANAMA: CHIRIQUI: David, Rovira, 2,200

feet, 13 July 1964, A. Broce, 1 d 1 ? •

Leucotrichia limpia Ross

FIGURES 14-18, 49, 230, 236

Leucotrichia limpia Ross, 1944, p. 273.

Although this species is clearly a member of the melleopicta group, it offers a number of distinctive characteristics. The coloration of the wings, grayish green with

a transverse black band, is diagnostic, as is the small,

pointed seventh sternal process. There are also smaller

differences in the shape of the eighth sternum, claspers,

and aedeagus.

ADULT.—Length of forewing, 3.5-4.5 mm. Legs and

body straw colored; head and mesonotum with green

hairs, with some fuscus hairs between; forewing mostly

gray green with a transverse fuscus band at midlength,

and apex fuscus. Ocelli 3, head dorsally seta bearing,

simple; antenna simple. Male genitalia: Seventh

sternum with a pointed apicomesal process, about onefourth length of sternum. Eighth sternum with ventrolateral lobes, with a deep V-shaped apicomesal excision.

Ninth segment as broad as long in ventral aspect,

dorsal surface barely indented. Tenth tergite with inner

margin tridentate; lateral penis sheath short and

tubular. Subgenital plate U-shaped in lateral aspect,

with dorsal arm subequal to ventral arm, with a small,

ovoid basal opening in ventral aspect. Clasper fused

mesoventrally, with a dorsolateral spine; slightly longer

than wide. Aedeagus with a pair of apical spines in a

membranous sac; midlength complex bearing a pair of

elongate basal processes giving rise to a large basal

loop.

LARVA.—Length to 5 mm. Head dark brown, pale

around eyes; with a crescentic band of large papillate

rugosities posteriorly on frontoclypeus; anterior margin

of frontoclypeus slightly convex. Thoracic nota dark

brown, muscle scars slightly paler; prosternum with a

pair of linear sclerites. Abdominal tergites dark brown.

Anal claw with a large dark dorsal seta.

CASE.—Length 5.5 mm. by 2.5 mm. Silken; oval,

slightly domed with a circular opening at each end.

MATERIAL.—U.S.A.: ARIZONA : Coconino Co., West

Fork, 16 miles southwest Flagstaff, 5 Aug. 1961,

R. W. Hodges, 1? . MEXICO: SAN LUIS POTOSI:

Rancho Quemado (4 miles south Tamazunchale),

Route 85, km. 353, 4-6 Aug. 1966, O. S. Flint, Jr.,

lo*- OAXACA: Tamazulapan, 7-8 June 1967, Flint

and Ortiz, lcf. CHIAPAS: El Chorreadero, south of

Chiapa de Corzo, 11 Aug. 1967, O. S. Flint, Jr., Id1

2 ? . COSTA RICA: CARTAGO: Ojo de Aqua, Route

2, km. 75, 30 June 1967, Flint, Spangler, and Ortiz,

many larvae, d1 9 pupae. (Originally described from:

U.S.A.: TEXAS: Fort Davis, Limpia Creek, 19 April

1939, H.H. and J.A.Ross).

Leucotrichia chiriquiensis, new species

FIGURES 1,24-28,231,237

This is the most highly specialized species of the melleopicta group so far found. The greatly modified head

of the male is unique among the species of this group.

The long rods attaching the basal loop to the midlength complex of the aedeagus is very suggestive of

limpia, but the lateral lobes of the eighth sternum,

narrow claspers, and apparent coloration are more suggestive of viridis.

The species is only known from one collection of

larvae and pharate males and females. It is thus impossible to give a precise indication of the length of the

forewing and coloration.

ADULT.—Length of forewing, probably about 2 mm.

Color apparently mostly fuscus; antenna with apical

segment and 2 segments at three-fourths the length

pale; forewing with basal region green, fuscus apically.

Ocelli 3; head with a broad anterior shelf bearing

short, black, flattened and contiguous setae (leaving

polygonal bases when removed as in type), shelf giving

rise to a pair of internal, circular pouches in head, also

filled with similar setae; antenna with basal segment

slightly flattened and greatly elongate, indented on anterior face with this groove filled with modified setae,

remaining segments terete. Male genitalia: Seventh

sternum with a long, spatulate apicomesal process.

Eighth sternum with apicolateral angles produced into

short rounded lobes. Ninth segment open ventrally,

dorsally with anterior margin nearly straight; posteroventral angle but slightly prolonged, with a row of long

setae. Tenth tergites and lateral penis sheaths, typical.

Subgenital plate typical, ventral arm longer than dorsal, with a small, ovoid basal opening. Claspers fused

basally, in ventral aspect narrow with tips directed

mesad, in lateral aspect with dorsal margin produced
NUMBER 60

into a tooth at midlength. Aedeagus with apex bearing

a lightly sclerotized apical tubule and small, membranous lateral processes, midlength complex with long

basal rods supporting basal loop.

LARVA.—Length to 3 mm. All sclerites blackish

brown, pale around eyes; head without rugose areas,

posterior portion of frontoclypeal region depressed; anterior margin of frontoclypeus truncate. Prosternum

with a pair of elongate sclerites. Anal claw with dorsal

seta enlarged and black.

CASE.—Length 4 mm. by 2 mm. Silken; oval in outline, slightly convex; anterior and posterior openings

slightly rimmed.

MATERIAL.—Holotype, pharate male. PANAMA:

CHIRIQUI: Alto Lino above Boquete, 16-17 July 1967,

Flint and Ortiz. USNM Type 70896. Paratypes: Same

data, 2c? 1 ? . Other: Same data, many larvae and

pupae.

Leucotrichia tubifex Flint

FIGURES 19-23, 42-46, 232, 237

Leucotrichia tubifex Flint, 1964, p. 44; 1968a, p. 33.

This species and gomezi, new species, form a distinctive

subgroup in the melleopicta group. They are characterized by their large size, rather uniform olive or

bronze green coloration, virtually identical structure

of the aedeagus, and possession of a molar tooth on

the right mandible of the larvae.

From gomezi, tubifex is most easily recognized by

the comparatively shorter claspers and apex of the

aedeagus, and specialized structure of the eighth sternum in the male. The larvae of tubifex are easily distinguished by the structure of the frontoclypeus with

its submesal lobes from the anterior margin and its

reticulate area posteriorly.

ADULT.—Length of forewing, 4-5 mm. Color of

body and appendages, brownish black; hairs of head,

thorax, and forewings, olive green. Ocelli 3; head

dorsally wholly seta bearing; antenna simple. Male

genitalia: Seventh sternum with a short, pointed, compressed apicomesal process. Eighth sternum posteriorly with a pair of rounded, submesal lobes each bearing a row of short, broad setae. Ninth segment about

as high as long, anterolateral angle not produced;

dorsally with anterior margin truncate; with a long

row of stout setae posterolaterally. Tenth tergite with

inner margin weakly tridentate; lateral penis sheath

membranous and indistinct. Subgenital plate lightly

sclerotized, extending as a narrow band from ventral

angles of tenth tergites, ventral margin of dorsal arm

sinuate in profile, ventral arm shorter than dorsal.

Clasper short and broad, slightly constricted subapically, without dorsal tooth. Aedeagus with an apicoventral sclerite, a pair of short, basally directed rods at

midlength, basal loop complete.

LARVA.—Length to 7 mm. Head yellow brown; posterior half of f rontoclypeal region darkly reticulate, tentorial pits rather well marked; anterior margin of

frontoclypeus with a pair of submesal lobes. Right

mandible with a large mesal tooth. Thoracic nota yellowish marked with brown laterally and posteriorly,

muscle scars indistinctly darker. Prosternum without

longitudinal sclerites. Abdominal tergites pale brown.

Dorsal seta of anal claw small and pale.

CASE.—Length to 7 mm. by 2-3 mm. Silken; elongate-oval, domed; anterior and posterior openings

rimmed, and extended into tubes 1-2 mm. long at

pupation.

MATERIAL.—PUERTO RICO: Maricao, light at

fish hatchery, 23 Dec. 1962, Spangler, c? holotype;

Rio Anasco, Route 109, km. 18, 11 Aug. 1961, Flint,

Spangler, and Maldonado, $ allotype, 4 c? 4$ paratypes, larvae and pupae; Rio Villalba above Guayabal

Reservoir, 14 Aug. 1961, Flint and Spangler, 9 larvae;

near San Lorenzo, Route 181, km. 9.1, Flint and

Spangler, 1 larva, cases; Route 191, km. 29.3, 8 Jan.

1963, Spangler, 18 larvae. JAMAICA: ST. ANDREW:

Yallahs River, Chestervale, 24-25 July 1962, O. and

R. Flint, Fair, 2cf 4 ? , cf 9 pupae, larvae; same, but

17 July 1963, Flint and Farr, 8cf 2$ ; Hope River

near Newcastle at milepost 16.5, 30 July 1962, Farr,

O. and R. Flint, 1 larva; same, but 18 July 1963,

Flint and Farr, 1 d1- DOMINICAN REPUBLIC:

Jarabacoa, 3-4 June 1969, Flint and Gomez, 1 cf ; Rio

Camu, 19 km. northeast of Jarabacoa, 12 June 1969,

Flint and Gomez, many larvae and pupae.

Leucotrichia gomezi, new species

FIGURES 222-226, 236

This species is related to the preceding, tubifex Flint,

but differs in a number of ways both in the adult males

and larvae. The eighth sternum of the male is almost

squarely truncate and without specialized setae, the

claspers are almost three times as long as broad, and

the apical parts of the aedeagus are proportionately

longer in gomezi.
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

The larvae of gomezi are quite different in appearance, lacking the submesal lobes of the anterior margin

and reticulate region posteriorly on the frontoclypeus,

but possessing a group of papillae mesad of the eyes.

ADULT.—Length of forewing, 4.5-6 mm. Body

brownish black, legs yellowish brown; hairs of head,

thorax, and wings bronze green. Ocelli 3; head dorsally wholly seta bearing; antennae simple. Male genitalia: Seventh sternum with a short, pointed apicomesal

process. Eighth sternum with posterior margin straight.

Ninth segment slightly longer than high, anterolateral

angle not prolonged; dorsally with anterior margin

straight; with a row of stout setae posterolaterally.

Tenth tergite with posterior margin tridentate, dorsal

point acutely produced; lateral penis sheath membranous. Subgenital plate extending from ventral

angles of tenth tergites as a broad mesal plate into basal

region of claspers and extending as a pointed structure

within claspers. Clasper short, slightly less than three

times as long as broad, slightly constricted subapically,

with an apicodorsal seta. Aedeagus with an elongate

apicoventral sclerite and usual midlength complex and

basal loop.

LARVA.—Length to 7 mm. Head yellow brown,

darker along anterior margin and posteriorly; several

large papillae mesad of eyes, tentorial pits well marked;

anterior margin of frontoclypeus slightly sinuate. Right

mandible with a mesal tooth. Thoracic nota yellow

brown, marked with fuscus marginally, muscle scars

slightly darker; legs with tarsi distinctly darker than

basal segments. Prosternum without linear sclerites. Abdominal tergites dark brown. Dorsal seta of anal claw

small, pale.

CASE.—Length to 8 mm. by 3 mm. Silken; elongateoval, slightly domed; anterior and posterior openings,

circular, slightly rimmed, but not tubelike.

MATERIAL.—Holotype, male. DOMINICAN REPUBLIC: La Palma, 12 km. east of El Rio, 2-13 June

1969, Flint and Gomez. USNM Type 70897. Paratypes: Same data, lOd1

 5 ? ; Convento, 12 km. south

of Constanza, 6-13 June 1969, Flint and Gomez, 2 ? .

Other: Same data as holotype, many larvae, cf ?

pupae.

Leucotrichia imitator, new species

FIGURES 3, 33-37, 233, 237

This species is the least modified of the pictipes group.

The male genitalia of this species are very similar to

those of L. sarita; however, L. imitator is easily recognized by its unmodified head. The claspers of this

species lack the small apicodorsal point found in sarita,

and the aedeagus possesses a pair of eversible apical

sacs and a pair of apicoventral, dark bands.

The larvae in the one collection available are easily

distinguished from those of the other species by their

distinctive color pattern on the head.

ADULT.—Length of forewing, 3-4 mm. Body brownish; antennae annulate, tarsi indistinctly annulate,

head with green and fuscus hairs; forewing fuscus with

crescentic greenish bands, whole wing with frosting of

green hairs. Ocelli 2; head simple, setae concentrated

along anterior and posterior margin; antenna simple.

Male genitalia: Seventh sternum with an apicomesal

brush of setae. Eighth sternum with a broad, shallow

apical excision. Ninth segment with anterolateral angle

slightly produced; posterolateral margin with a row of

stout setae; dorsally with anterior margin slightly concave. Tenth tergite typical; lateral penis sheath small,

indistinct. Subgenital plate connecting tenth tergites

ventrally, extending ventrad as a narrow, straight process, ventral arm inflated basally. Clasper almost 4 times

as long as broad in lateral aspect, with a dorsal spine

subapically, apex rounded in lateral aspect. Aedeagus

membranous apically with a pair of sacs bearing a

sclerotized apex, subapically with a pair of lateral

sclerites forming a pair of dark, elongate bars ventrally;

with midlength complex, basal loop, and basal tube.

LARVA.—Length to 5 mm. Head brown, with a distinct pattern of pale spots centrally; posterior half of

frontoclypeal region rugose, with tentorial pits rather

well marked, anterior margin truncate. Thoracic nota

yellowish marked with dark laterally and posteriorly.

Abdominal tergites yellowish brown. Anal claw with

dorsal setae small and pale.

CASE.—Length 5 mm. by 2.5 mm. Silken; oval in

outline, domed; opening at one end provided with a

large hoodlike flap, other opening simple.

MATERIAL.—Holotype, male. MEXICO: VERA

CRUZ : Plan del Rio Ver, Route 140, km. 368, 23 July

1965, Flint and Ortiz. USNM Type 70898. Paratypes:

Same data, 1 o*l $. GUATEMALA: EL PROGRESSO:

San Augustin Acasaguastlan, 11-21 Aug. 1965, Flint

and Ortiz, 2o* 1 ? • SUCHITEPEQUEZ; Puente Ixtacapa,

near San Antonio, 18-19 June 1966, Flint and Ortiz,

Id. COSTA RICA: PUNTARENAS: Rio Seco, north-
NUMBER 60

west of Esparta, 23 July 1967, Flint, 2 c?- Other:

Same data, many larvae, c? $ pupae.

Leucotrichia sarita Ross

FIGURES 4, 29-32,48,238

Leucotrichia sarita Ross, 1944, p. 274.—Flint, 1968b, p. 38.

In the modifications of the head, this species occupies

an intermediate position between imitator and pictipes.

In sarita the central portion of the head is concave

and bordered laterally by a row of setae, the anterior

area bears a dense brush of setae which lies in the

central depression. The genitalia of this species and

fairchildi appear to be indistinguishable; however, the

head of the latter is very differently structured.

The larvae of sarita and pictipes are almost inseparable. The anterolateral seta of the mesonotum and

metanotum is distinctly enlarged and generally darkened in sarita, whereas it is pale and hardly enlarged

in pictipes.

ADULT.—Length of forewing, 3-4 mm. General

color fuscus; bright green linear markings on the forewings, tegulae, and head; antenna with alternating

series of white and fuscus segments. Ocelli 2; head

centrally heavily sclerotized and concave, bounded

laterally by a lightly sclerotized area bearing a linear

cluster of setae, heavily sclerotized next to eye and

bearing a slightly elevated ocellus, clypeal region

densely hairy bearing a dorsal brush mostly covering

dorsomesal sclerite; antenna simple. Male genitalia:

Seventh sternum with an apicomesal brush of setae.

Eighth sternum produced into acute lateral angles,

posterior margin broadly U-shaped. Ninth segment

strongly produced posteroventrally, anterior margin

dorsally concave, with a row of strong setae posterolaterally. Tenth tergite typical; lateral penis sheath ovoid,

lightly sclerotized. Subgenital plate extending as a

narrow sclerite from ventral angle of tenth tergite,

ventral arm elongate, inflated basally, pointed apically.

Clasper in lateral aspect about 5 times as long as broad,

with a dorsal subapical spine, apex produced into a

small point dorsally. Aedeagus with a pair of apicolateral sclerites capping membranous lobes, subapically

with several linear sclerites ventrally; midlength complex with a pair of basal rods, and a complete bas'al

loop.

LARVA.—Length to 3.5 mm. Head yellow brown;

posterior half of f rontoclypeus coarsely rugose; anterior

margin of frontoclypeus truncate. Thoracic nota yellow

brown, darker laterally and posteriorly; anterolateral

seta of mesonotum and metanotum enlarged and generally dark. Abdominal tergites brown. Dorsal seta of

anal claw small and pale.

CASE.—Length to 4 mm. by 2.5 mm. Silken; oval in

outline, slightly domed; with slightly rimmed anterior

and posterior circular openings.

Material.—U.S.A.: TEXAS: Balmorhea, irrigation

flume, 19 April 1939, H. H. and J. A. Ross, c? holotype,

INHS; New Braunfels, Landa Park, 18 June I960,

Flint and Gollette, larvae, c? pupa; Hays Co., Wimberly, Fem Bank Spring, 1 July 1960, O. S. Flint, Jr.,

6 pupae; same, but 17 Sept. 1960, larvae, c? 9 pupae.

MEXICO: NUEVO LEON: Monterrey, Rio Elizondo,

19-20 June 1956, O. S. Flint, Jr., 1 larva, c? pupa.

VERA CRUZ: Plan del Rio Ver, Route 140, km. 368,

23 July 1965, Flint and Ortiz, 2 c? 7 ? ; Fortin de las

Flores, June 1964, F. S. Blanton, 1 c?; Cuitlahuac,

10-12 Aug. 1964, P. J. Spangler, 2 c? 5 9 ; El Encero,

Route 140, km. 347, 22 July 1965, Flint and Ortiz,

5 c? ; Rio Tacolapan, Route 180, km. 551, 25-26 July

1966, Flint and Ortiz, lc?- MORELOS: near Xochitepec, Route 95, km. 91, 1 Aug. 1965, O. S. Flint, Jr.,

9 c? 10? ; Xochitepec, 12-14 July 1965, Flint and

Ortiz, 6 c? 5$ , larvae, c? $ pupae. MICHOACAN: San

Lorenzo, Route 15, km. 206, 14-15 July 1966, Flint

and Ortiz, 8 c? 5 9 • OAXACA: Jaltepec. 21 May 1964,

F. S. Blanton, 1 c?; Tehauntepec, 23 July 1964, P. J.

Spangler, 1 c? 7 $ . CHIAPAS : east of Arriaga, Route

185, km. 135, 7-8 July 1966, Flint and Ortiz, larvae,

cT 9 pupae; near Pijijiapan, 5 July 1965, P. J.

Spangler, 1 c? ; Puente Arroyo Viejo, near Mapastepec,

7 July 1966, Flint and Ortiz, 2 larvae, 1 pupa. GUATEMALA: SUCHITEPEQUEZ : Cuyotenango, 10-20 June

1966, Flint and Ortiz, 1? , larvae, c? 9 pupae.

RETALHULEU: Puente El Nino, 16 June 1966, Flint

and Ortiz, 1 $ . SAN MARCOS: Puente Ixben, 15 June

1966, Flint and Ortiz, 3c?. EL SALVADOR: SANTA

ANA: 2 miles north of Candelaria de la Frontera,

7 Aug. 1967, O. S. Flint, Jr., lc?. COSTA RICA:

GUANACASTE: Las Canas, 13 July 1965, P. J. Spangler,

4c? 23? . PUNTARENAS: Rio Seco, northwest of

Esparta, 23 July 1967, O. S. Flint, Jr., ltf.

GRENADA: 2 miles west of Grand Etang, 4-S Aug.

1963, O. S. Flint, Jr., 6c? 7? , c? pupa.
10

Leucotrichia pictipes (Banks)

FIGURES 5-6, 38-41, 47, 239

Orthotrichia pictipes Banks, 1911, p. 359.—Betten, 1934, p.

152.—Milne, 1936, p. 77.

Ithytrichia confusa Morton.—Lloyd, 1915, p. 117.—Nielsen,

1948, p. 11 [misidentification].

Stactobia pictipes (Banks).—Ross, 1938, p. 10.—Fischer,

1961, p. 110.

Leucotrichia pictipes (Banks).—Ross, 1944, p. 120.—Denning, 1947a, p. 170; 1947b, p. 145.—Leonard and

Leonard, 1949, p. 12.—Denning, 1956, p. 255.

This species and the following, fairchildi, have the most

highly modified heads in the genus. The details of the

structure of the heads in the two species, however, are

quite different, the seventh sternum lacks the apicomesal point in pictipes, and there are many differences in

the male genitalia between the two.

The larvae of pictipes resemble those of sarita very

closely (larvae of fairchildi are unknown). The anterolateral seta of the mesonotum and metanotum of

pictipes is not much enlarged and is pale, whereas the

same seta in sarita is much enlarged and generally

dark.

ADULT.—Length of forewing, 3-4 mm. Color reddish brown (old specimens); marked with white hairs

on face and tegulae; antenna annulate beyond basal

segments; tarsi indistinctly annulate; forewing with a

white basal spot, a white transverse band at midlength,

apex with a series of pale marginal spots. Ocelli 2; anteromesal part of head deeply depressed with a dark,

hirsute, goblet-shaped structure, posterior warts large,

bearing from beneath a large hirsute lobe, anterolateral

lobes elongated anteromesally, partially open beneath,

densely hirsute, clypeal region densely hirsute; antenna

with basal segment globose, next five segments compressed, narrow, segments beyond progressively more

elongate and terete. Male genitalia: Seventh sternum

with an apicomesal brush of setae. Eighth sternum with

a broad apicomesal excision. Ninth segment with

a slight anterolateral lobe, dorsal margin anteriorly

shallowly concave, with a short row of stout setae posterolaterally. Tenth tergite with mesal face tridentate;

lateral penis sheath small, indistinct. Subgenital plate

extending as a narrow sclerite from ventral angle of

tenth tergite, ventral arm elongate, inflated basally,

pointed apically. Clasper in lateral aspect about 3 times

as long as broad, with a dorsal subapical spine, apex

rounded. Aedeagus with a pair of apicolateral sclerites,

subapically with a pair of caliperlike ventral sclerites,

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

midlength complex with basal rods and a complete

basal loop.

LARVA.—Length to 4.5 mm. Head yellow brown;

posterior half of frontoclypeus coarsely rugose, anterior

margin of frontoclypeus truncate. Thoracic nota yellowish, posterior margins darker; anterolateral seta of

mesonotum and metanotum pale, but slightly enlarged.

First, eighth, and ninth abdominal tergites dark brown,

other tergites pale brown.

CASE.—Length 5 mm. by 3 mm. Silken; oval in outline, slightly domed; circular openings at each end, each

with a small rim.

MATERIAL.—U.S.A.: VIRGINIA: FauquierCo.,Broad

Run, Thorofare Gap, 27 March 1962, O. S. Flint, Jr.,

many larvae. WEST VIRGINIA: Pendleton Co., Smoke

Hole Camp, 28-29 Aug. 1963, R. and O. Flint, 2 c?

2 $ . ILLINOIS : Apple River Canyon State Park, 6 June

1940, Mohr and Burks, 2o" (INHS). MICHIGAN: Big

Rapids, Muskegon River, 22 May 1936, Frison and

Ross, 2o* (INHS). WISCONSIN: Hayward, Chippewa

River bridge, Moose Lake, 12 Aug. 1938, T. H. Frison

and T. H. Frison, Jr., 1 cT (INHS). WYOMING: Yellowstone National Park, Madison Junction, 19 Aug.

1962, P. J. Spangler, ltf. UTAH: Juab Co., Gandy,

6 May 1937, Rees, larvae, o* $ pupae. NEW MEXICO:

Jemez Springs, 4 July 1953, W. W. Wirth, Id1-

ARIZONA: Cochise Co., Southwest Research Station, 4 miles west Portal, 5,400 feet, 29 July 1965, V. D.

Roth, 1 o* • OREGON : Klamath Lake, 27 July, Dyar and

Caudell, 3d1 2 $ . NEVADA: Reno, 3 Aug. 1916, H. G.

Dyar, many <S d $ ? • CALIFORNIA : Kern Co., Kern

Canyon, 15 miles east Bakersfield, 6 Aug. 1964, R. L.

Nelson, 4o". Recorded from Colorado, Idaho, Minnesota, and New York (Johnstown, type locality).

Leucotrichia fairchildi, new species

FIGURES 7-8, 238

This species shares with pictipes the distinction of having extreme modifications of the head and antennae.

From pictipes, fairchildi differs in the type of modifications of the head, in the broader basal antennal segments, in the possession of an apicomesal point on the

seventh sternum, and in many particulars in the male

genitalia. From sarita, from which I find no differences

in the male genitalia, fairchildi differs totally in the

structure of the head, antennae, and seventh sternum.

ADULT.—Length of forewing, 2.5 mm. Color fuscus

with green linear marks on forewing, and tegulae;
NUMBER 60 11

antenna with alternating series of light and dark segments. Ocelli 2; posterolateral wart large, with setiferous, membranous lobe protruding from beneath,

with a pair of anterolateral pouches bearing specialized

setae, anteromesally with a membranous, setiferous

"tentacle"; antenna with basal segment slightly enlarged, basal flagellar segments very broad and thin,

forming a concave cup, apical segments elongate and

cylindrical. Male genitalia: Seventh sternum with a

small apicomesal point. I am unable to find any other

differences in the genitalia between this species and

those of sarita, for which see drawings and descriptions.

MATERIAL.—Holotype, male. PANAMA: COCLE:

El Valle, 17 Dec. 1929, G. Fairchild, MCZ collection.

Genus Costatrichia Mosely

Costatrichia Mosely, 1937, p. 166. [Type species: Costatrichia

lodora Mosely, 1937, by original designation.]

ADULT.—Ocelli 3. Spurs 1, 3, 4. Pronotum slightly

elongate. Antenna with basal segment simple, sometimes with segments at midlength expanded. Mesoscutellum with transverse suture; metascutellum nearly

triangular. Forewing often with reflexed costal cell.

Male genitalia: Seventh sternum with an apicomesal

pointed process. Eighth sternum produced posteroventrally, sometimes bearing processes. Ninth segment

completely open ventrally, with a setose posterolateral

process. Tenth tergite (?) heavily sclerotized, often

united to ninth segment, forming a strong lateral brace

to aedeagus. Lateral penis sheath generally large and

ovoid, sometimes small and indistinct. Clasper elongate, generally divided into dorsal and ventral

branches, not fused to each other mesally. Aedeagus

with a basal tubular section passing into a midlength

complex which bears circular "windows" in lateral

aspect and a large basal loop, apex with a membranous central tube with various combinations of spines

and lateral plates.

LARVA.—Unknown.

Costatrichia, as here used, is not as tightly knit a

group as are either Leucotrichia or Zumatrichia. It is

clearly related to these genera, however, as is shown

by the general structure of the aedeagus. Although in

the form of the genitalia, Costatrichia approaches

Zumatrichia most closely, it is easily separated from

this genus by having three ocelli and unmodified basal

antennal segments.

Costatrichia simplex, new species, and C. spinifera,

new species, are clearly very closely related, and may

be considered to form the simplex group. They are

characterized by unmodified antennae and lack of

a reflexed costal cell on the forewing together with a

very similar form of the genitalia. The remaining

species, lodora Mosely, panamensis Flint, tripartita,

new species, and bipartita, new species, may be considered to form the second group, the lodora group.

In these species some of the antennal segments are

greatly broadened and the forewings possess a reflexed

costal cell. In these species there is more variation in

the form of the genitalia, although all possess more or

less strongly divided claspers.

The immature stages of this genus are totally unknown. However, based on adult affinities, I would

expect the larvae to have enlarged abdominal segments five to seven.

Key to Species of Costatrichia

ADULTS

1. Forewing with a reflexed costal cell, antennae with a series of broad segments.. lodora group.. 2

No reflexed costal cell, antennal segments terete simplex group 5

2. Clasper deeply divided into two or three arms, of which at least one is greatly elongated 3

Clasper only slightly divided with dorsal and ventral aims short and subequal in length.. lodora

3. Clasper divided into three parts, all of which are greatly elongate tripartita

Clasper divided into two parts, dorsalmost being most elongate 4

4. Eighth sternum with posterolateral angle bearing two short, broad and one long, slender setae;

ventral arm of clasper small and directed distinctly ventrad bipartita

Eighth sternum without ornamentation; ventral arm of clasper larger, directed posteriad.

panamensis

5. Eighth sternum bearing four broad setae laterally and a midventral flap spinifera

Eighth sternum without modifications from posterior margin simplex
12

Costatrichia lodora Mosely

Figures 55-61, 240

Costatrichia lodora Mosely, 1937, p. 168.—Fischer, 1961,

p. 139.

This species is very closely related to C. panamensis

Flint, differing in having the dorsal arm of the claspers

only slightly longer than the ventral and in having long

apicoventral rods in the aedeagus.

The specimen from Costa Rica differs slightly in a

number of ways from the paratype studied, the most

noticeable being the broader dorsal arm of the clasper.

I believe, however, that both belong to the same

species.

ADULT.—Length of forewing, 2.5 mm. Completely

denuded; brown. Scape very long, slightly compressed,

basal flagellar segments broad, concave anteriorly.

Forewing with a reflexed costal cell basally. Male

genitalia: Seventh sternum with a long, slender,

pointed process. Eighth sternum produced posteroventrally, posterior margin with a slight mesal excision. Ninth segment with anterolateral angle produced

into a rounded lobe; with a rounded, setose posterolateral process. Tenth tergite broadly fused to posterior

margin of ninth segment, posterior margin shallowly

concave. Lateral penis sheath broad basally, tapering apically in lateral aspect, broad and bilobed

in ventral aspect. Clasper divided into a pointed,

slightly curved dorsal arm slightly surpassing ventral

arm which is produced into an apicomesal point. Aedeagus with typical basal tubular portion and midlength complex with basal loop; apically with a pair

of long, lateroventral structures pointed apically and a

membranous dorsal lobe with two sclerotized points.

MATERIAL.—MEXICO: CHIAPAS: Dolores, 16

Mar. 1931, A. Dampf, d paratype, BM(NH).

COSTA RICA: SAN JOSE: Rio General, Pacuare, 1

Julyl%7,P.J.Spangler,ld1.

Costatrichia panamensis Flint

FIGURES 62-65, 240

Costatrichia panamensis Flint, 1967, p. 11.

The species is probably most closely related to C.

bipartita, new species, from which it differs in lacking

the ornamentation of the eighth sternum, in the shape

of the claspers and lateral penis sheath, and in the

structure of the aedeagus.

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

ADULT.—Length of forewing, 2-2.5 mm. Color

primarily fuscus, marked with bright green on mesonotum; forewing mostly green with conspicuous transverse fuscus bands just beyond midlength and at apex.

Basal antennal segments compressed and very broad;

densely covered with black setae. Forewing with an

elongate, reflexed costal cell. Male genitalia: Seventh

sternum with a long, pointed, apicomesal process.

Eighth sternum slightly produced posteromesally, with

a small apicomesal excision. Ninth segment produced

anterolaterally as a narrow, rounded lobe; with a

semi-erect, setose posterolateral process. Tenth tergite

broadly united to ninth segment laterally, posterior

margin shallowly concave. Lateral penis sheath broad

and rounded apically in lateral aspect, apicoventral

surface with a broadly V-shaped excision, with a narrow V-shaped strap dorsally. Clasper divided into an

elongate, broad ventral arm, and a long pointed dorsal

arm. Aedeagus with typical basal tubular portion and

midlength complex with basal loop; apex with a dorsomesal sclerite terminating in a ventral point, a membranous ventromesal process terminating in a spine,

and a pair of basolateral plates.

MATERIAL.—PANAMA: CANAL ZONE: Rio Agua

Salud, Pipeline Road, 30 Mar. 1965, S. S. and W. D.

Duckworth, Id1 holotype; same, but 8-12 July 1967,

Flint and Ortiz, 7d" 2 $ ; same, but July 1967, W. W.

Wirth, 2o* 2? .

Costatrichia bipartita, new species

FIGURES 66-69, 240

The bifurcate form of the claspers in this species indicates its close relationship to C. panamensis Flint, from

which it is easily distinguished by the structure of the

eighth sternum, and shape of the lateral penis sheaths,

claspers, and aedeagus.

ADULT.—Length of forewing, 2.5 mm. Completely

cleared; color unknown. Antenna with scape and basal

flagellar segments slightly enlarged, about as broad as

long. Forewing with a small reflexed costal cell opening

ventrally. Male genitalia: Seventh sternum with a

long, narrow process, slightly enlarged apically. Eighth

sternum with a small lateral lobe, bearing 1 long, slender seta and 2 short, broad setae; posterior margin

with a ragged, U-shaped mesal excision. Ninth segment

with anterolateral angle broadly rounded, with a

rounded, hirsute posterolateral process. Tenth tergite
NUMBER 60 13

narrow, pointed ventrally. Lateral penis sheath heavily

sclerotized, narrowed and rounded apically, with a

ventral subapical point. Clasper with a long curved,

dorsal arm, ventral arm curved ventromesally, fused

mesally and forming a small lobe in ventral aspect.

Aedeagus with typical basal tubular portion, and midlength complex with basal loop; apical portion with a

flat dorsal sclerite and a pair of heavily sclerotized

spines.

MATERIAL.—Holotype, male. NICARAGUA:

CHONTALES: Puente Quinama, near Villa Somoza,

29 July 1967, O. S. Flint, Jr. USNM Type 70899.

Paratype: Same data, 1J1.

Costatrichia tripartita, new species

FIGURES 70-73, 237

This species, on the basis of the modifications of the

antennae and forewings, falls in the lodora group, but

the structure of the genitalia is very distinctive, especially the tripartite claspers and the large dorsomesal

spine of the eighth sternum.

ADULT.—Length of forewing, 2.5 mm. Completely

cleared; color unknown. Antenna with scape very large,

basal flagellar segments broader than long, all covered

with short, broad setae. Forewing with an elongate,

reflexed costal cell. Male genitalia: Seventh sternum

with an elongate, pointed, apicomesal process. Eighth

sternum scooplike, posterior margin deeply and narrowly divided on midline; with a large pointed process

arising just basad of division and directed dorsad and

posteriad. Ninth segment with anterolateral angle truncate, posterolateral lobe rounded, multisetate. Tenth

tergite heavily sclerotized, pointed apicoventrad, with

a posterodorsal knob. Lateral penis sheath lightly

sclerotized, short, with a distinct ventral plate. Clasper

tripartite: a long, slightly curved, spinelike ventromesal process; a long, broad, ventrolateral process; a

shorter, spinelike, dorsolateral process. Aedeagus with

basal tubular portion, midlength complex with complete basal loop; apical portion with a lightly sclerotized dorsal plate, and a pair of large, heavily sclerotized ventral spines.

MATERIAL.—Holotype, male. PANAMA: CANAL

ZONE : Rio Agua Salud, Pipeline Road, 8-12 July 1967,

Flint and Ortiz. USNM Type 70900.

Costatrichia spinijera, new species

FIGURES 74-77, 238

This species seems to be rather closely related to C.

simplex, new species, from which it is easily distinguished by the ornamentation of the eighth sternum,

shape of the claspers, and aedeagus.

ADULT.—Length of forewing, 2 mm. Forewing

mostly fuscus, basal half bearing many greenish white

hairs, then an oblique fuscus region, subapical region

with many greenish white hairs, tip dark; apparently

without a reflexed costal cell. Antenna simple. Male

genitalia: Seventh sternum with a long, slender,

pointed apicomesal process. Eighth sternum elongate,

apicolateral angle produced, bearing 4 short, stout

setae, ventromesally with a small, thin, rectangular

process. Ninth segment with anterolateral angle broad,

posterolateral process, pointed, erect. Lateral penis

sheath, broad, rounded apically, sides not fused mesoventrally. Clasper broadest basally, tapering apicad,

tip pointed, directed mesad. Aedeagus with basal tubular portion, midlength complex with basal loop; apex

membranous with a dorsobasal group of 3 contiguous

spines, slightly more distad with 3 pairs of separated

spines, apical membranous tube with a ventral region

of spinules.

MATERIAL.—HOLOTYPE, male. PANAMA: CANAL

ZONE: Rio Agua Salud, Pipeline Road, 8-12 July

1967, Flint and Ortiz. USNM Type 70901. Paratypes:

Same data, 1? . CHIRIQUI: Rio Caimito, 10 miles

west of David, 4 July 1967. P. J. Spangler, 2<?.

Costatrichia simplex, new species

FIGURES 78-81, 240

This species is most closely related to the preceding one,

C. spinijera, new species, from which it is easily

distinguished by the shape of the eighth and ninth

segments, claspers, and aedeagus.

ADULT.—Length of forewing, 2-2.5 mm. Forewing

mostly brown, with a narrow transverse, green stripe

at midlength, a mottled greenish region subapically,

and with an interrupted greenish band along posterior

margin; head with white hair; costal vein with a

basal bulla. Antenna simple, pale. Male genitalia: Seventh sternum with two pointed mesal processes.

Eighth sternum slightly elongate, without ornamentation, almost squarely truncate. Ninth segment elongate,
14

anterior margin obliquely truncate, posterolateral

lobe rounded, multisetate. Tenth tergite broadly

fused to ninth segment, connected dorsally by a

distinctly sclerotized strap. Lateral penis sheath

elongate, rounded apically, narrowly divided dorsally and ventrally. Clasper scoop-shaped, apicoventral angle slightly prolonged. Aedeagus with basal

tubular section, midlength complex with basal

loop; apex with a basal cluster of about 8 pairs

of spines, then a slightly sclerotized dorsal hook,

beneath which arises a membranous, generally recurved

tube whose undersurface is covered with dark spicules.

MATERIAL.—Holotype, male. EL SALVADOR:

SAN SALVADOR: Lake Ilopango, near Apulo, 4-5 July

1966, Flint and Ortiz. USNM Type 70902. Paratypes:

Same data, 2o* 3 ? ; same, but 5 Aug. 1967, many

cf cf $ $• MEXICO: CHIAPAS: near Pijijiapan, 5

July 1965, P. J. Spangler, 7 c?; Arriaga, 22 July 1965,

P. J. Spangler, 2&. HONDURAS: COMAYAOUA: Rio

Humuya, northwest of Comayagua, 3 Aug. 1967, O.

S. Flint, Jr., 1 o*. ATLANTIDA : Lancetilla, Aug., Stadelmann, 3cf (MCZ). VALLE: Nacaome, 4 Aug. 1967,

O. S. Flint, Jr., 1 <?. CHOLUTECA: Pespire, 1 Aug. 1967.

O. S. Flint, Jr., Id1 COSTA RICA: GUANACASTE:

Rio Ahogados, 10 miles northwest of Liberia, 25 July

1965, P. J. Spangler, Id1; Las Canas, 13 July 1965,

P. J. Spangler, Id1.

Anchitrichia, new genus

TYPE SPECIES.—Anchitrichia spangleri, new species.

ADULT.—Ocelli 2 in cf and $ . Spurs 1, 3, 4. Basal

antennal segment simple. Pronotum elongate mesally;

mesoscutellum with a transverse suture; metascutellum

pentagonal. Forewing broad, not markedly attenuate

apically; held rooflike over body in repose. Male genitalia: Seventh sternum with a pointed apicomesal process. Eighth sternum with 2 pairs of lateral processes.

Ninth tergum quadrate laterally, open ventrally; a

ventral sclerite (ninth sternum?) connecting claspers

and eighth sternum. Cercus rounded with many setae.

Tenth tergite trigonal, heavily sclerotized. Lateral

penis sheath narrow, pointed. Claspers narrow,

divided mesally. Aedeagus with midlength complex,

basal loop, no apical spines.

LARVA (supposition).—Stem of frontoclypeal suture

well developed, tentorial pits indicated faintly. Frontoclypeus with anterior margin bearing a pair of broad

submesal lobes; posteromesally with a raised scalelike

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

process. Pronotum with anterolateral angles strongly

produced over head; divided longitudinally. Femora

with a large arborescent seta basodorsally. Abdomen

with 9 tergites: first transverse, rounded laterally, tergites 2-7 broad mesally with paired central pores,

eighth tergite with posterolateral angles produced,

ninth tergite broader than long without enlarged basal

setae. Segments 1 and 8 with a small lateral sclerite;

segments 2-7 with 2 pairs of small sclerites. Anal claw

lacking black apical seta. Abdominal segments increasing regularly in size through the seventh, ninth much

reduced.

This genus is erected for a species that differs rather

strongly from the species of Zumatrichia, to which it

shows its greatest similarity. The species is very distinctive especially when alive: i.e., the large size, broader

wings with tranverse green markings, and manner of

holding the wings rooflike over the abdomen. Structurally, the species is equally distinctive, especially noteworthy are the unmodified antennae, the presence of

2 ocelli in both males and females, and the general

structure of the male genitalia.

The larvae attributed to this genus and species have

not been reared, nor have metamorphotypes been

taken. However, based on size, relationship, and occurrence, there is no other adult form to which they can be

reasonably ascribed. These larvae are very distinctive,

albeit clearly more closely related to those of Zumatrichia than to any other genus. Some of the more distinctive characteristics are the bilobed anterior margin and

posteromesal process of the frontoclypeus, the enlarged

anterior angle of the pronotum, the arborescent seta of

the femora, and the shape and structure of the

abdominal tergites.

Anchitrichia spangleri, new species

FIGURES 82-89, 234, 241

This is the only known species of the genus. The

male genitalia of this species show more variation

than seen in other leucotrichine species, with both

the shape of the clasper and the number of spines it

bears being especially variable.

ADULT.—Length of forewing, 4-5 mm. Body and

appendages straw colored; antennae weakly annulate;

most tarsal segments bicolored, apex of hind tibia

dark; head and thorax covered with greenish and a

few fuscus hairs; forewing mostly fuscus with trans-
NUMBER 60 15

versely linear green marks and scattered green hairs.

Head simple, posterior wart slightly enlarged. Antenna

terete, basal segments nearly equidimensional, segments

distinctly elongate toward apex. Male genitalia: Seventh sternum with a pointed apicomesal process about

half as long as sternum. Eighth sternum bearing laterally two long, slender processes; dorsalmost longest

and capped by a short, black seta, ventral process onehalf to two-thirds the length of dorsal one. Ninth tergum rather short with anteroventral angle rounded and

slightly produced; posterolateral lobe buttonlike, multisetate. A broad, ventromesal sclerite connecting posterior margin of eighth sternum to clasper bases. Tenth

tergite narrow, broadly fused to apicolateral margin

of ninth tergum. Lateral penis sheath narrow and

deciirved in laieral aspect, not divided ventrally but

completely open dorsally. Clasper elongate, narrow,

slightly curved, dorsal margin with a group of 1-2

erect, dark, subapical setae, apex with 4—10 such

setae. Aedeagus with basal tubular portion, midlength

complex with large lateral "windows" and large basal

loop, apex tubular without spines.

LARVA.—Length to 6 mm. Mandibles and labrum as

in Leucotrichia. Head yellowish brown. Frontoclypeal

region without rugosity, slightly depressed; with several

papillae posteromesad of eyes. Thoracic nota pale

brown; marked with fuscus; setae short, surface

smooth. First abdominal tergite with a dark transverse

stripe; other tergites pale brown.

CASE.—Larval case 8 mm. by 2 mm. Silken; open

ventrally and both ends. One end protected by an

enlarged, transversely oval hood; opposite end with

a flared collar.

Pupal case 4—5 mm. by 1-1.5 mm. Torpedo shaped,

made of tough silk. Attached from one end to substrate by a silk strand 2-8 mm. long (averaging 5-6

mm.).

BIOLOGY.—The larvae construct a rather typical case

on large boulders in the strongest current just below

the surface film. Just prior to pupation the silken

thread is spun from the end with the flared collar to

a small silken hold-fast attached to the boulder. The

larval case is then apparently shortened, cut loose

from the boulder, and transformed into the torpedolike cocoon. This pupal case, which is attached at one

end to the boulder by the silken thread, floats freely

in the water just below the surface film. This adaptation may serve to prevent desiccation and death of the

pupae caused by minor changes in the water level.

379-699 O—70 B

MATERIAL.—Holotype, male. MEXICO: CHIAPAS:

Arriaga, 22 Aug. 1965, P. J. Spangler. USNM

Type 70903. Paratypes: MEXICO: SAN LUIS POTOSI:

Palitla, 5 June 1966, O. S. Flint, Jr., 12 c?1 119.

VERA CRUZ: Puente Nacional, 31 July 1966, Flint

and Ortiz, 29; same, but 15 June 1964, F. S. Blanton,

Id1; Rio Tacolapan, Route 160, km. 551, 25-26

July 1966, Flint and Ortiz, 19; Cuitlahuac, 10-12

Aug. 1964, P. J. Spangler, 29- TABASCO: Rio Puyacatengo, east of Teapa, 28-29 July 1966, Flint and

Ortiz, 5c? 249. CHIAPAS: same data as holotype,

52c?1 649. GUATEMALA: SucHrrEPEQUEz: Cuyotenango, 10-20 June 1966, Flint and Ortiz, 2 c?1

 29;

Puente Ixtacapa, near San Antonio, 28 June 1966,

Flint and Ortiz, 1 c?1 259- ESCUINTLA : Escuintla,

10 Aug. 1965, P. J. Spangler, 5 c?1 119- HONDURAS: COMAYAGUA: Rio Humuya, northwest of

Comayagua, 3 Aug. 1967, O. S. Flint, Jr., 59.

COSTA RICA: GUANACASTE: Quebrada Tronadorcita, Arenal, 24 July 1967, O. S. Flint, Jr., 1 c?1

;

Rio Ahogados, 10 miles northwest of Liberia, 25

July 1965, P. J. Spangler, Id1; Rio Corobici, Las

Canas, 26 July 1967, O. S. Flint, Jr., 19; Las Canas,

13 July 1965, P. J. Spangler, 1 cT 59- PUNTARENAS;

Rio Seco, northwest of Esparta, 23 July 1967, O. S.

Flint, Jr., 32 c?1 139; 9 miles northwest of Esparta,

22 July 1965, P. J. Spangler, 1 c?1 89; Rio La Vieja,

near Laggarto, 2-3 July 1967, Flint and Ortiz, 19-

CARTAGO: La Suiza, 17 June 1967, Flint and Ortiz,

39; Quebrada Relleno, La Cruzada, 20 June 1967,

Flint and Ortiz, 19; 3 miles west of Turrialba,

18-21 June 1967, Flint and Ortiz, lcf. SAN JOSE:

Rio General, Pacuare, 1 July 1967, Flint and Ortiz,

7c?1 69. PANAMA: CHUUQUI: Rio Caimito, 10

miles north of David, 4 July 1967, Flint and Ortiz,

39; Dolega, 17 July 1967, O. S. Flint, Jr., 4c?1 219;

Rio Chiriqui Viejo, El Volcan, 5,280 feet, 22 July

1964, A. Broce, 19; Potrerillos, 3,200 feet, 25 July

1964, A. Broce, 1 c?1 19; Rio El Pueblo, Dolega,

2,000 feet, 27 June 1964, A. Broce, 3 c?1 79; David,

Doleguita, 3 June 1964, A. Broce, 59; David, Rovira,

2,200 feet, 13 July 1964, A. Broce, 20 c?1 199- CANAL

ZONE: Rio Agua Salud, 8-12 July 1967, Flint and

Ortiz, Id1. Other: COSTA RICA: PUNTARENAS:

Rio Seco, northwest of Esparta, 23 July 1967, O. S.

Flint, Jr., 1 larva. SAN JOSE: Rio General, Pacuare,

1 July 1967, Flint and Spangler, many larvae and

pupae.
16 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

Genus Zumatrichia Mosely

Zumatrichia Mosely, 1937, p. 187.—Flint, 1968b, p. 34.

[Type species: Zumatrichia filosa Mosely, 1937, by original

designation.]

ADULT.—Ocelli 2 in male, 3 in female. Spurs 1, 3, 4.

Basal antennal segment of male elongate, enlarged,

with a buttonlike appendage covering half of face

which is slightly concave. Pronotum elongate mesally.

Mesoscutellum with a transverse suture; metascutellum

pentagonal. Forewing strongly attenuate. Male genitalia: Seventh sternum with an apicomesal pointed

process. Eighth sternum well sclerotized and produced

beneath ninth segment, often with processes. Ninth

segment open ventrally, with a membranous tubular

flap apicodorsally; posterolaterally with a lobe (cercus?) generally bearing one large apical seta. Tenth

tergite (?) heavily sclerotized, produced and pointed

ventrad, with a knoblike process dorsally. Lateral penis

sheath (subgenital plate?) generally broad, lateral

halves mostly fused ventromesally. Claspers generally

fused basomesally, often with a long basodorsal process.

Aedeagus with a basal tubular portion passing into

a midlength complex which bears a basal loop and

lateral "windows," apex with a membranous section

often bearing lateral and dorsal plates and various

internal spines.

LARVA.—Stem of frontoclypeal suture well developed, arms wanting; tentorial pits well marked. Anterior margin of frontoclypeus truncate, posterior

portion rarely rugose. Pronotum divided longitudinally,

anterolateral angles not produced; mesonotum and

metanotum entire. Femora with basodorsal seta spiniform. Abdomen with segments 5 and 6 abruptly

enlarged, 7 slightly smaller; with 9 tergites, first transverse, extending across dorsum of segment, second

slightly smaller, third through seventh smaller yet;

tergites 2-7 with a pair of contiguous central pores;

eighth tergite larger, about 3 times as wide as long,

with large black setae along posterior margin; ninth

tergite shield shaped, with a crescentic band of short,

stout setae along anterior and lateral margins. Segment 1 without lateral sclerites; segments 2 and 8

with 1 small lateral sclerite, segments 3-7 with 2

sclerites. Anal claw with dorsal seta pale and small.

In spite of the number of species included in the

genus, they are all, with the exception of Z. anomaloptera Flint, identical in appearance in the field, and the

general structure of the male genitalia is likewise the

same in all species.

On both adult and larval structure the genus is

clearly in the Leucotrichia series of genera. It appears

to be most closely related to Anchitrichia from which it

may be separated by the structure of the head and

antennae, shape of the wings, and to a lesser degree by

the structure of the genitalia. The larvae also support

the same relationship to Anchitrichia, but differ in the

shape of the pronotum and the structure of the dorsal

seta of the femur.

Zumatrichia multisetosa, new species, which I place

in its own group, is the only species yet found in which

the posterolateral lobe of the ninth segment is multisetate. This may represent the primitive condition in

the genus, all of the remaining species having only one

seta on this lobe. These remaining species seem to fall

into several groups, one, the galtena group, lacks

processes from the eighth sternum but possesses a

basodorsal process from the clasper. This group contains twelve species: echinata Flint, antilliensis Flint,

saluda, new species, galtena Mosely, vieja, new species,

notosa (Ross), strobilina, new species, chiriquiensis,

new species, angulata, new species, bifida, new species,

dtamphidia, new species, and attenuata, new species.

The other main group, the filosa group, bears a lateral

process from the eighth sternum but lacks the long

basodorsal process of the clasper. To this group I assign

filosa Mosely, caudifera, new species, teapa, new

species, and rhamphoides, new species. The group containing only palmara possesses both a lateral process

and a ventromesal lobe from the eighth sternum and a

basodorsal process from the clasper. The last group,

containing only anomaloptera, has genitalia much like

the latter, but is distinct from all other species on the

structure and coloration of the forewing.

Larvae have been associated with only three species

in this genus. The larvae of multisetosa differ from

those of antilliensis and anomaloptera (between which

I can find no differences) in the possession of a rugose

area posteriorly on the frontoclypeus. I have also a few

unassociated larvae from the mainland which are

indistinguishable from those of the insular species. It

thus seems quite probable that the larvae of the majority of the species will prove to be indistinguishable.
NUMBER 60 17

Key to Species of Zumatrichia

ADULTS

1. Posterolateral lobe of ninth segment broad and bearing many setae multisetose

Posterolateral lobe of ninth segment slender and bearing 1 or rarely 2 apical setae 2

2. Eighth sternum without processes 3

Eighth sternum bearing processes of some sort 14

3. Claspers in ventral aspect produced into rodlike apicolateral lobes 4

Claspers in ventral aspect truncate or conical (produced mesally) 8

4. Basodorsal process of clasper simple, sinuous, attenuate 5

Basodorsal process of clasper bearing spines or distinctly enlarged subapically 6

5. Aedeagus bearing apically 1 dorsal and 2 lateral spines echinata

Aedeagus bearing additionally a pair of hooked ventral spines antilliensis

6. Basodorsal process of clasper widened apically, tip cleft satudo

Basodorsal process of clasper not enlarged apically, but with spines, etc 7

7. Basodorsal process of clasper ending in a cluster of long spines galtena

Basodorsal process of clasper with a row of short spines apically and a mesal spine at

midlength vieja

8. Claspers in ventral view conical (produced apicomesally) 9

Claspers in ventral view truncate apically 11

9. Basodorsal process of clasper a simple spinelike process notota

Basodorsal process of clasper variously ornamented apically 10

10. Basodorsal process of clasper strongly twisted and bearing a dorsolateral row of spines subapically, tip prolonged strobilina

Basodorsal process of clasper slightly sinuous, bearing a subapical cluster of dorsomesal

spines, tip not prolonged chiriquiensis

11. Basodorsal process of clasper a simple, angulate, pointed process angtdata

Basodorsal process of clasper divided or bearing a basal process 12

12. Basodorsal process of clasper divided into 2 subequal, simple processes bifida

Basodorsal process of clasper with a slender basal process 13

13. Basodorsal process of clasper with apex widened and sharply angulate dorsad diamphidia

Basodorsal process of clasper long and attenuate attenuate

14. Eighth sternum with a lateral process bearing an apical, enlarged seta 15

Lateral process without an enlarged apical seta 18

15. Eighth sternum also produced ventromesally 16

Eighth sternum concave ventromesally 17

16. Clasper with a long, pointed, basodorsal process; ventromesal lobe of eighth sternum truncate.

pahnara

Clasper with a short, seta-tipped basodorsal process; ventromesal lobes of eighth sternum

caliperlike anomaloptera

17. Aedeagus apically with a middorsal hood, 2 pairs of spines, and a midventral crooked rod.

fOota

Aedeagus with a middorsal hood, 1 pair of spines, and a pair of ventral pointed processes.

caudifera

18. Clasper in lateral view, very long, enlarged subapically teapa

Clasper long, narrow, apex developed into a short, dorsal point rhamphoides

Zumatrichia multisetosa, new species

FIGURES 90-93, 235, 242

This widely distributed species is easily recognized by

the broad posterolateral lobe of the ninth segment

which bears 5 to 10 elongate setae. The shape of the

claspers is also rather distinctive as is the structure

of the apical portion of the aedeagus.

This is one of the few species in the genus for which

the immature stages are known. As pointed out previously, this is the only species in which the posterior of

the frontoclypeus is rugose. Of course this characteristic may not prove to be specifically distinctive when

the larvae of more species are known.

ADULT.—Length of forewing, 3 mm. Color fuscus

marked with patches of greenish hairs. Male genitalia: Eighth sternum with posterolateral margin

obliquely truncate. Ninth segment with anterolateral
18

angle slightly produced and truncate; posterolateral

lobe broad and bearing 5-10 stout setae. Lateral penis

sheath broad, with a prominent ventral, subapical

point. Clasper with a long, slender, apicolateral process, sometimes with its tip slightly bifid; midventrally

fused and slightly produced. Aedeagus apically with

a middorsal hoodlike process with its tip produced

ventrally, beneath which are a pair of elongate spines,

basoventrally with a pair of short, broad slightly bifid

spines.

LARVA.—Length to 4 mm. Head brown; posterior

half of frontoclypeal region rugose. Thoracic nota

brown, points of articulation and margins darker.

Abdominal tergites brown.

CASE.—Length 4 mm. by 2 mm. Silken with many

imbedded sand grains; oval, slightly domed; circular

openings at both ends, each rimmed with silk.

MATERIAL.—Holotype, male. GUATEMALA:

SUCHITEPEQUEZ : Cuyotenango 10-20 June 1966, Flint

and Ortiz. USNM Type 70904. Paratypes: MEXICO:

VERA CRUZ: La Gloria Cardel, May 1937, J. Carmelo G., Id1

; Puente Nacional, 15 June 1964, F. S.

Blanton, 2cf • CHIAPAS: near Pijijiapan, 5 July 1965,

P. J. Spangler, ltf; Arriaga, 22 Aug. 1965, P. J.

Spangler, 7cf- GUATEMALA: SUCHITEPEQUEZ:

same data as holotype, 9 c? ; Puente Ixtacapa, near

San Antonio, 28 June 1968, Flint and Ortiz, 2<f.

ESCUINTLA: Escuintla, Grutas de San Pedro Martir,

10 Aug. 1965, P. J. Spangler, 5cT. HONDURAS:

ATLANTIDA: Lancetilla, Aug., Stadelmann, 9cf

(MCZ). COSTA RICA: GUANACASTE: Rio Ahogados, 10 miles northwest of Liberia, 25 July 1965, P. J.

Spangler, 3 c? ; Rio Corobici, Las Canas, 26 July 1967,

O. S. Flint, Jr., 2 c? ; Las Canas, 13 July 1965, P. J.

Spangler, 12cf. PUNTARENAS: 9 miles northwest of

Esparta, 22 July 1965, P. J. Spangler, 57 c? ; Rio Seco,

northwest of Esparta, 23 July 1967, O. S. Flint, Jr.,

84cT. Other: Same data, larvae, c? $ pupae.

Zumatrichia echinata Flint

FIGURES 94-96, 243

Zumatrichia echinata Flint, 1967, p. 11.

This species is very closely related to Z. antilliensis

Flint from the Lesser Antilles. It differs in possessing

shorter, broader apicolateral lobes on the claspers, and

above all in the different arrangement of spines in the

apical portion of the aedeagus.

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

ADULT.—Length of forewing, 3-3.5 mm. Coloration

typical pattern of grayish green and fuscus. Male genitalia: Eighth sternum without processes, truncate

apically, with a small ventromesal cleft. Ninth segment

with anterolateral angle slightly produced; posterolateral lobe slender, bearing a single seta. Lateral penis

sheath ovate, nearly 3 times as long as broad, with a

midventral tooth. Clasper with a long, slender, basodorsal process, sinuate apically; ventral lobe in ventral

aspect with a short, broad, apicolateral process. Aedeagus apically with well-developed lateral plates, a single

thin, narrow, dorsal process, and a pair of long internal

spines.

MATERIAL.—GUATEMALA: EL PROORESSO: San

Agustin Acasaguastlan, 11-21 Aug. 1965, Flint and

Ortiz, 1 d1 1 $ , holotype and allotype. HONDURAS:

ATLANTIDA: Lancetilla, Aug., Stadelmann, lc?

(MCZ).

Zumatrichia antilliensis Flint

FIGURES 50-54, 97-100, 228, 242

Zumatrichia antilliensis Flint, 1968b, p. 34.

This species, which is often very abundant on the

Lesser Antillean islands, is very similar to the preceding species, Z. echinata Flint. From this species it

differs in having more slender apicolateral lobes of the

clasper and in the structure of the apical portion of the

aedeagus.

ADULT.—Length of forewing, 3-3.5 mm. Coloration

typical pattern of grayish green and fuscus. Male genitalia: Eighth sternum without processes, rather broad,

divided ventromesally. Ninth segment with anterolateral angle produced into a narrow lobe; posterolateral lobe slender with a single apical seta. Lateral

penis sheath elongate, ovoid, about 1 ^ times as long

as broad, with a midventral tooth. Clasper with a

long, slender, slightly sinuate, basodorsal process; ventral lobe elongate, with digitate apicolateral lobes.

Aedeagus apically with a middorsal process widened

basally, a pair of lateral spines, and an appressed,

hooked, pair of midventral processes.

LARVA.—Length to 3 mm. Head brown; without

rugosity, tentorial pits rather well marked. Thoracic

nota and legs, brown, points of articulation and posterior margins of nota darker. Abdominal tergites

brown.

CASE.—Length 4 mm. by 1.5 mm. Silken; oval in
NUMBER 60 19

outline, slightly domed; with circular anterior and

posterior openings.

MATERIAL.—DOMINICA: Clarke Hall, 17 April

1964, O. S. Flint, Jr., c? holotype; plus many thousands of other specimens in all stages from all over the

island. GUADELOUPE: Petit-Bourg, Duclos, March

1966, J. Bonfils, many d <$ ? $ . ST. LUCIA: Cul

de Sac River, at milepost 9, 29 July 1963, Flint and

Cadet, 5 cf ; Vergallier River, near Marquis, 2 Aug.

1963, Flint and Cadet, 2cT- GRENADA: 2 miles west

Grand Etang, 4-8 Aug. 1963; O. S. Flint, Jr., many

<? d ? ? ; Balthazar, 7 Aug. 1963, O. S. Flint, Jr.,

4c?.

Zumatrichia galtena Mosely

FIGURES 101-104, 243

Zumatrichia galtena Mosely, 1937, p. 188.—Fischer, 1961,

p. 176.

This species is rather common and widespread over

much of Mexico and Central America. It is closest

to Z. saluda, new species, from which it differs in

possessing a cluster of fingerlike appendages at the

apex of the basodorsal processes of the clasper, and

in having short ventral and long lateral spines in the

apex of the aedeagus.

ADULT.—Length of forewing, 2.5-3.5 mm. Coloration typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum without processes; with a

narrow midventral cleft. Ninth segment with anterolateral angle slightly developed; posterolateral process

slender with a single apical seta. Lateral penis sheath

large, rounded, slightly more than twice as long as

broad, with a midventral tooth. Clasper with a long,

slightly sinuate basodorsal process ending in a cluster

of 4-5 fingerlike processes; ventral lobe bearing slender

apicolateral processes. Aedeagus with rounded lateral

plates, a slender middorsal process sheltering a pair of

long, slender spines, a slightly curved, shorter, midventral spine, basally with a large number of small,

internal spines.

MATERIAL.—MEXICO: VERA CRUZ: La Gloria

Cardel, Jan. 1938, J. Camelo G., 5cf. CHIAPAS:

Puente Arroyo Viejo, Route 200, km. 141, 9 June

1967, Flint and Ortiz, 2o*. HONDURAS: COMAYAOUA: Rio Humuya, northwest of Comayagua, 3 Aug.

1967, O. S. Flint, Jr., 65c?. COSTA RICA: GUANACASTE: Las Canas, 13 July 1965, P. J. Spangler, 2 c?;

Rio Corobici, Las Canas, 26 July 1967, O. S. Flint, Jr.,

21cf; Rio Ahogados, 10 miles northwest of Liberia,

25 July 1965, P. J. Spangler, 3d1.

Zumatrichia saluda, new species

FIGURES 105-108, 243

This species is quite close to the preceding, Z. galtena

Mosely, but differs in the shape of the apex of the

basodorsal process of the clasper, and in possessing a

pair of longer spines midventrally in the apex of the

aedeagus.

ADULT.—Length of forewing, 3-3.5 mm. Coloration typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum without processes; truncate

apically, with a narrow midventral cleft. Ninth segment with anterolateral angle broadly enlarged;

posterolateral process slender with a single, long apical

seta. Lateral penis sheath broad, rounded, about V/a

times as long as broad; with a midventral tooth.

Clasper with basodorsal process long, slightly sinuous,

subapically enlarged and cupped, with a shallow apical

division (paratypes vary from none to many); ventral

lobe with apicolateral, fingerlike processes. Aedeagus

apically with basolateral plates, an elongate middorsal

process, surmounting a pair of long spines, a pair of

shorter spines centrally, a pair of long spines ventrally,

basally with a large number of small, internal spines.

MATERIAL.—Holotype, male. PANAMA: CANAL

ZONE: Pipeline Road, Rio Agua Salud, 8-12 July

1967, Flint and Ortiz. USNM Type 70905. Paratypes: Same data, 8cf. CHIRIQUI: David, Doleguita,

3 June 1964, A. Broce, 3 c?.

Zumatrichia vieja, new species

FIGURES 109-112,242

Although this species is clearly a member of the

galtena group, it is quite distinctive. The very long,

slightly fimbriate basodorsal process of the clasper with

its mesal tooth and the angulate spines of the aedeagus

are distinctive.

ADULT.—Length of forewing, 3 mm. Coloration

typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum without processes, rounded

laterally, with a midventral cleft. Ninth segment with

anterolateral angle enlarged and prolonged; posterolateral process slender, tipped by a long, slender seta.
20

Lateral penis sheath broad, rounded, slightly more

than V/2 times as long as broad, with a midventral

tooth. Clasper with a long, slender, basodorsal process,

tip slightly fimbriate, with a mesal tooth near midlength, process bowed outwardly beyond this tooth;

ventral lobe with long, fingerlike apicolateral lobe.

Aedeagus apically with a rounded basolateral plate,

a slender, angulate middorsal process, a pair of long,

angulate lateral spines, basally with a large number

of small, internal spines.

MATERIAL.—Holotype, male. COSTA RICA:

PUNT ARENAS: Rio La Vieja, near Lagarto, east of

Palmar Norte, 2-3 July 1967, Flint and Ortiz. USNM

Type 70906. Paratypes: Same data, 7o* ; Palmar Sur,

21 Aug. 1965, R. T. Allen, 3cT (INHS); same, but

23 Aug. 1965, 6c? (INHS). SAN JOSE: Rio General,

Pacuare, 1 July 1967, Flint, Ortiz and Spangler, IdZumatrichia chiriquiensis, new species

FIGURES 113-116, 244

This species is clearly related to the following, Z.

strobilina, new species, from which it is distinguished

by the different shape and spination of the basodorsal

process of the clasper, the broader lateral penis sheaths,

and the very different structure of the aedeagus.

ADULT.—Length of forewing, 3.5-4 mm. Coloration

typical pattern of grayish green and fuscus. Male genitalia: Eighth sternum without processes; posterior margin, with a U-shaped posteromesal excision. Ninth segment with anterolateral angle slightly produced and

obliquely truncate; posterolateral lobe slender, with a

single long seta. Lateral penis sheath broad and

rounded, about 1J/2 times as long as broad; with a midventral tooth; in ventral aspect with apical portion

bisinuate. Clasper with basodorsal process elongate,

slightly sinuate, with several spinelike teeth apicomesally; ventral lobe in lateral aspect with tip produced

into a dorsal hook, in ventral aspect with posterior margin broadly conical. Aedeagus apically with a pair of

lateral plates, a middorsal rod angled apically, and a

pair of large, curved ventral spines.

MATERIAL.—Holotype, male. PANAMA: CHIRIQUI: Dolega, 17 July 1967, O. S. Flint, Jr. USNM

Type 70907. Paratypes: Same data, 4o*; Rio El

Pueblo, Dolega, 2,000 feet, 27 June 1964, A. Broce,

17cf ; Doleguita, David, 3 June 1964, A. Broce, 20 d ;

Rovira, David, 2,200 feet, 13 July 1964, A. Broce, 3d ;

Rio Chiriqui Viejo, El Volcan, 5,280 feet, 22 July 1964,

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

A. Broce, Id- COSTA RICA: SAN JOSE: Rio General, Pacuare, 1 July 1967, Flint, Ortiz, and Spangler,

8c?.

Zumatrichia strobilina, new species

FIGURES 117-120, 243

This species is closely related to the preceding from

which it differs in the twisted, spiniferous basodorsal

process of the clasper, the narrower lateral penis

sheaths, and in the spines of the aedeagus.

ADULT.—Length of forewing, 4 mm. Coloration

typical pattern of grayish green and fuscus. Male genitalia: Eighth sternum without processes; with a deep,

broad apicomesal excision. Ninth segment with anterolateral angle broadly rounded; posterolateral lobe

slender, bearing a large, apical seta. Lateral penis

sheath elongate, narrow, rounded, about 4 times as

long as broad, with a ventral tooth slightly beyond midlength; in ventral aspect with apical portion sinuate.

Clasper with a heavy, twisted, basodorsal process bearing spiniform teeth on apical portion; ventral lobe in

lateral aspect with a strong, subapical, dorsal hook, in

ventral aspect with posterior margin broadly conical.

Aedeagus apically with lateral plates united dorsally

and prolonged into a spiniform process, a pair of long

spines dorsally, and a pair of short spines ventrally.

MATERIAL.—Holotype, male. COSTA RICA: CARTAGO: 3 miles west of Turrialba, 18-21 June 1967,

Flint and Ortiz. USNM Type 70908. Paratype: Same

data, lo*.

Zumatrichia notosa (Ross), new combination

FIGURES 121-124, 239

Leucotrichia notosa Ross, 1944, p. 271.

This species is clearly a member of the galtena group,

but occupies a rather intermediate position between

the two preceding species with conical posterior margins of the claspers, and the following four with truncate posterior margins of the claspers. The simple,

curved, basodorsal process and the slightly conical posterior margin of the claspers, the rather short lateral

penis sheaths, and the structure of the apical portion

of the aedeagus are distinctive.

This species is the only one of the genus known from

the United States and it is still only known from the

few types.
NUMBER 60 21

ADULT.—Length of forewing, 3 mm. Coloration unknown. Male genitalia: Eighth sternum without processes, truncate apically, with an apicomesal cleft.

Ninth segment with anterolateral angle not produced;

posterolateral lobe slender and bearing a single seta.

Lateral penis sheath barely longer than high; with a

broad, subapical tooth ventrally. Clasper with basodorsal process slender, and curved, extending no further

than lateral penis sheaths; ventral lobe in ventral

aspect with posterior margin slightly produced mesally.

Aedeagus apically with a well-developed dorsolateral

hood produced into an apicomesal point, beyond which

extends a pair of long, decurved central spines, an appressed pair of long ventral spines, basally with a large

number of small, internal spines.

MATERIAL.—U.S.A.: MONTANA: Missouri River,

Toston, 22 June 1940, H. H. and J. A. Ross, tf holotype, INHS.

Zumatrichia angulata, new species

FIGURES 125-128, 242

This species bears a simple basodorsal process from the

claspers much like that of the preceding species, however, the shape of the ventral lobe of the claspers, and

structure of the aedeagus point to a closer relationship

with Z. bifida, new species. The simple, angulate basodorsal process of the claspers and the presence of two

pairs of long spines in the aedeagus will serve to distinguish these two species.

ADULT.—Length of forewing, 4 mm. Coloration

appearing typical (in alcohol). Male genitalia: Eighth

sternum without processes; with a very small apicoventral emargination. Ninth segment with anterolateral angle broadly enlarged; posterolateral process

slender, with a single long apical seta. Lateral penis

sheath short; apex nearly truncate, with a broad

ventral tooth. Clasper with basodorsal process no

longer than lateral penis sheath, simple, with apical

half angled ventrad; ventral lobe with posterior margin

almost squarely truncate in ventral aspect. Aedeagus

with a middorsal rod, widened basolaterally, with 2

pairs of long spines, ventralmost slightly longer.

MATERIAL.—Holotype, male. PANAMA: CHIRIQUI:

Rovira, David, 2,200 feet, 13 July 1964, A. Broce.

USNM Type 70909. Paratype: Same, but Rio

Chiriqui Viejo, El Volcan, 5,280 feet, 22 July 1964,

A. Broce, 1 cf.

Zumatrichia bifida, new species

FIGURES 129-132, 245

Although abundantly distinct, this species shows a definite relationship to Z. angulata, new species. The

deeply divided basodorsal process of the claspers and

the lack of long spines in the aedeagus are distinctive.

ADULT.—Length of forewing, 3-4 mm. Color

apparently typical (in alcohol). Male genitalia: Eighth

sternum without processes; with a small U-shaped

apicomesal excision. Ninth segment with anterolateral

angle broadly enlarged; posterolateral lobe slender,

with a single, long, apical seta. Lateral penis sheath

broad, rounded, about twice as long as broad, with a

ventral tooth beyond midlength; irregularly constricted in ventral view. Clasper with basodorsal process elongate, divided for more than half its length;

ventral lobe truncate in both its lateral and ventral aspects. Aedeagus apically with a middorsal rod, widened

basolaterally, with a pair of short, subdorsal spines.

MATERIAL.—Holotype, male. COSTA RICA: SAN

JOSE: Rio General, Pacuare, 1 July 1967, Flint, Ortiz?

and Spangler. USNM Type 70910. Paratypes: Same

data, 45cf. PANAMA: CHIRIQUI: Rovira, David,

2.200 feet, 13 July 1964, A. Broce, 2 c?; Potrerillos,

3,200 feet, 25 July 1964, A. Broce, 1<5\

Zumatrichia diamphidia, new species

FIGURES 133-136, 244

The basodorsal process of the clasper in this species is

one of the most bizarre of any yet seen in the genus.

It is clearly related to the following species on the basis

of the trifid clasper with a truncate ventral lobe, but is

easily recognized by the very broad apex of the

basodorsal process of the clasper which is angled

sharply dorsad.

ADULT.—Length of forewing, 2.5 mm. Color apparently typical (in alcohol). Male genitalia: Eighth

sternum without processes; posterior margin with a

shallow mesal excision. Ninth segment with anterolateral angle broadly inflated; posterolateral lobe slender,

with a single long, apical seta. Lateral penis sheath

slightly narrowed and rounded apicad, slighty more

than twice as long as broad; with a subapical ventral

tooth; irregularly constricted in ventral aspect. Clasper

with basodorsal process strongly sinuate basally, apex

very broad, angled dorsomesad, tip bifurcate; with a

slender process between basodorsal process and ventral
22 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

lobe; ventral lobe slightly angled in lateral aspect, with

tip produced into a dorsal point, in ventral aspect

almost squarely truncate. Aedeagus apically with a

middorsal process upturned apically, 2 pairs of spines

centrally, one much longer than other, with a heavy

hooked midventral process.

MATERIAL.—Holotype, male. COSTA RICA:

PUNTARENAS: 2.8 miles east of Golfito, 3-4 July 1967,

Flint and Ortiz. USNM Type 70911. Paratype: Same,

but 18-19 July 1967, ltf.

Zumatrichia attenuata, new species

FIGURES 137-140, 244

Although this and the preceding species are the only

ones yet found with tripartite claspers, they are abundantly distinct. The shape of the basodorsal process of

the claspers, lateral penis sheaths, and aedeagus are all

diagnostic.

ADULT.—Length of forewing, 4 mm. Coloration

typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum without processes; posterior

margin with a shallow mesal excision. Ninth segment

with anterolateral angle strongly produced; posterolateral lobe slightly broadened, with 2 long, apical setae.

Lateral penis sheath elongate, about 3 times as long as

broad, narrowed and rounded apically; with a midventral tooth; irregularly constricted in ventral aspect.

Clasper with basodorsal process sharply angled basally

and again at midlength, with a slender dorsal process

from basal section, apex very long and slender; with

a slender process between basodorsal process and

ventral lobe; ventral lobe short with an apicodorsal

point, truncate in ventral aspect. Aedeagus apically

with well-developed basolateral sheaths united dorsally, slender middorsal process with several small,

basal, spinous processes, and a single, large central

spine.

MATERIAL.—Holotype, male. COSTA RICA: CARTAGO: Quebrada Relleno, La Cruzada, east of Turrialba, 20 June 1967, Flint and Ortiz. USNM Type

70912.

Zumatrichia palmar a, new species

FIGURES 141-144, 245

This undescribed species, although distantly related to

Z. anomaloptera Flint, is extremely distinctive. The

shape of the process from the lateral margin and the

midventral lobe of the eighth sternum, the long basodorsal process of the claspers, the structure of the apex

of the aedeagus, and the lack of modification of the

forewings will serve to characterize this species.

ADULT.—Length of forewing, 2.5-3 mm. Coloration typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum with an elongate dorsolateral process which bears an apical, stout, angled

seta; midventrally produced into a broad nearly truncate lobe. Ninth segment with anterolateral angle,

broadly produced; posterolateral lobe slender, with a

single large apical seta. Lateral penis sheath, narrowed

and truncate apically, slightly longer than broad; constricted subapically in ventral aspect. Clasper with a

straight, slender basodorsal process, ventral lobe

elongate, slightly inflated apicad, halves widely separated in ventral aspect. Aedeagus with short, pointed

basolateral plates, a long, tonguelike middorsal process,

and a pair of long, slender, ventromesal spines which

bear a basolateral scalelike process.

MATERIAL.—Holotype, male. EL SALVADOR: LA

LIBERTAD: Rio El Palmar, 15 miles north of La Libertad, 2-3 July 1966, Flint and Ortiz. USNM Type

70913. Paratypes: Same data, Id1. COSTA RICA:

PUNTARENAS: 9 miles northwest of Esparta, 22 July

1965, P. J. Spangler, 4o" ; Rio Seco, northwest of

Esparta, 23 July 1967, O. S. Flint, Jr., 4tf; Palmar

Sur, 21 Aug. 1965, R. T. Allen, 28 J (INHS); Same,

but 23 Aug. 1965, many o* c? 9 9 (INHS).

Zumatrichia anomaloptera Flint

FIGURES 145-148, 244

Zumatrichia anomaloptera Flint, 1968b, p. 37.

This species, recently described from the Lesser Antilles, shows some relationship to the preceding, especially

in the structure of the eighth sternum. However, it is

abundantly distinct in the shape of the claspers and

aedeagus, and especially in the modifications of the

forewing.

ADULT.—Length of forewing, 3 mm. Color brown;

basal half of forewing of male covered by erect, scalelike, dark brown setae. Male genitalia: Eighth sternum

with a short, posterolateral protuberance bearing an

enlarged seta, ventrally with a pair of broad, caliperlike lobes. Ninth segment with anterolateral angle
NUMBER 60 23

broadly enlarged; posterolateral lobe slender, with a

single, enlarged apical seta. Lateral penis sheath broad,

rounded, about V/2 times as long as broad; with a

ventral, subapical tooth. Clasper with basodorsal process very short, straight; ventral lobe nearly truncate apically. Aedeagus apically containing many spines.

LARVA.—Length to 3 mm. Sclerites pale brown. Head

without rugosities; tentorial pits rather well marked.

Thoracic nota and legs yellowish brown, darker at

points of articulation and on posterior margins of

nota. Abdominal tergites pale brown.

CASE.—Length 4 mm. by 1.5 mm. Silken; oval

in outline, slightly domed, with anterior and posterior

circular openings.

MATERIAL.—GRENADA: Balthazar, 7 Aug. 1963,

O. S. Flint, Jr., cf holotype, allotype $ , paratypes

cf cf ? ? , larvae, and pupae. ST. LUCIA: Riviere

Galet, south of Dennery, 1 Aug. 1963, Flint and Cadet,

lcf; Vergallier River, near Marquis, 31 July 1963,

Flint and Cadet, cf cf 9 $ ; same, but 2 Aug. 1963,

2cT 4$ . DOMINICA: Clarke Hall, 1-10 March

1965, W.W.Wirth, lcf.

Zumatrichia filosa Mosely

FIGURES 149-152, 245

Zumatrichia filosa Mosely, 1937, p. 187.—Fischer, 1961,

p. 176.

This, the type species of the genus, is clearly related to

the following, but has differently shaped lateral penis

sheaths, claspers and apical spines in the aedeagus.

ADULT.—Length of forewing, 2.5-3 mm. Coloration,

typical pattern of grayish green and fuscus. Male genitalia: Eighth sternum with a long, slender, curved

lateral process bearing a long, apical seta; posteroventral margin evenly concave. Ninth segment with

anterolateral angle narrowly prolonged; posterolateral

lobe, small, with an apical seta. Lateral penis sheath

short, broad, rounded apically, nearly equidimensional,

with an apicoventral tooth. Clasper with basodorsal

process reduced to a small knob bearing a few small

setae; ventral lobe rather broad and rounded apically,

in ventral aspect with a U-shaped apical excision.

Aedeagus apically with an elongated, middorsal hood,

small basolateral sheaths, 4 long, internal spines, and a

midventral rod, upturned apically.

MATERIAL.—MEXICO: VERA CRUZ: Puente Nacional, 31 July 1966, Flint and Ortiz, 1 cf ; Rio Tacolapan, Route 180, km. 551, 25-26 July 1966, Flint and

Ortiz, 26 cf. TABASCO : Rio Puyacatengo, east of Teapa, 28-29 July 1966, Flint and Ortiz, 2cf • GUATEMALA: SUCHITEPEQUEZ: Cuyotenango, 10-20 June

1966, Flint and Ortiz, 6cf. NICARAGUA: CHONTALES : Puente Quinama, east of Villa Somoza, 29 July

1967, O. S. Flint, Jr., 2cf. COSTA RICA:

GUANACASTE: Quebrada Tronadorcita, Arenal, 24

July 1967, O. S. Flint, Jr., 1 cf.

Zumatrichia caudifera, new species

FIGURES 153-156, 246

This species, which is very closely related to Z. filosa

Mosely, appears to replace it in southern Central

America. It is quickly recognized by the pointed apices

of the lateral penis sheaths, the dorsal, subapical point

of the claspers, and the rather different appearance of

the apical portion of the aedeagus.

ADULT.—Length of forewing, 2.5-3 mm. Coloration,

typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum with a long, slender, lateral

process, tipped by a long, stout seta; posteroventral

margin concave. Ninth segment with anterolateral

angle narrowly produced; posterolateral lobe small,

tipped by a single seta. Lateral penis sheath with apex

oblique, with apicoventral angle beaklike. Clasper with

basodorsal process very short, with a small apical seta;

ventral lobe in lateral aspect narrowed apicad with a

dorsal subapical point, in ventral aspect rounded with

a small apical excision. Aedeagus apically with a middorsal hoodlike structure pointed apically, a pair of

central spines, one generally more exserted than other,

with a midventral attenuate structure terminating in

a tightly appressed paired section.

MATERIAL.—Holotype, male. PANAMA: CHIRIQUI:

Dolega, 17 July 1967, O. S. Flint, Jr. USNM Type

70914. Paratypes: Same data, 3lcf; Rovira, David,

2,200 feet. 13 July 1964, A. Broce, 5cf; Doleguita,

David, 3 June 1964, A. Broce, 12cf; Rio El Pueblo,

Dolega, 2,000 feet, 27 June 1964, A. Broce, 25cf;

Potrerillos, 3,200 feet, 25 July 1964, A. Broce, lcfCOSTA RICA: SAN JOSE: Rio General, Pacuare,

1 July 1967, Flint, Ortiz, and Spangler, 10cf.
24 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

Zumatrichia teapa, new species

FIGURES 157-160, 246

This species is a member of the filosa group, and is

most closely related to the following species, Z. rhamphoides, new species. It is easily recognized by the very

long lateral process of the eighth sternum, long claspers,

and long, pointed lateral penis sheaths.

ADULT.—Length of forewing, 2.5-3 mm. Coloration,

typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum with a long, slender lateral

process whose tip is shallowly divided; posteroventral

margin straight. Ninth segment with anterolateral

angle produced; posterolateral lobe short and broad,

with a single, large apical seta. Lateral penis sheath

with an oval basodorsal sclerite; sheath elongate, narrowed apically, with a long, pointed, apicoventral

tooth. Clasper with a small, knoblike basodorsal process; ventral lobe, very long, and slender, slightly inflated apically, with a deep, narrow, midventral slit.

Aedeagus apically with middorsal process pointed and

decurved apically, expanded basally into lateral plates,

internally with 6 spines of intermediate length.

MATERIAL.—Holotype, male. MEXICO: TABASCO :

Rio Puyacatengo, east of Teapa, 28-29 July 1966,

Flint and Ortiz. USNM Type 70915. Paratypes: Same

data, 9cf.

Zumatrichia rhamphoides, new species

FIGURES 161-164, 247

This species is also a member of the filosa group, most

closely related to the last described species. It differs

in possessing a multidentate apex to the lateral process

of the eighth sternum, a shorter and broader lateral

penis sheath, and a very differently structured clasper

and aedeagus.

ADULT.—Length of forewing, 2.5-3 mm. Coloration, typical pattern of grayish green and fuscus. Male

genitalia: Eighth sternum with a slender lateral process whose tip is multidentate; posteroventral margin

nearly straight. Ninth segment with anterolateral angle

produced; posterolateral lobe, short, slender, tipped by

a single seta. Lateral penis sheath about as broad

basally as long ventrally. obliquely truncate, with apicoventral angle beaklike; basodorsally with a lateral,

knoblike projection. Clasper without basodorsal process ; ventral lobe slender, elongate, with apex produced

into a dorsal point; in ventral aspect conical. Aedeagus

with a middorsal hook, pointed apically, expanded

basolaterally to form lightly sclerotized lateral plates,

with a pair of large central spines, basoventrally with

a single, large short spine.

MATERIAL.—Holotype, male. COSTA RICA:

PUNTARENAS: Rio La Vieja, near Lagarto, 23 July

1967, Flint and Ortiz. USNM Type 70916. Paratypes: Same data, 15cf; Rio Seco, northwest of Esparta, 23 July 1967, O. S. Flint, Jr., 9cf; 9 miles

northwest of Esparta, 22 July 1965, P. J. Spangler,

8d- SAN JOSE: Rio General, Pacuare, 1 July 1967,

Flint, Ortiz and Spangler, 8 d1. PANAMA: CHIRIQUI:

Rio Caimito, 10 miles west of David, 4 July 1967,

P. J. Spangler, lo".

Genus Alisotrichia Flint

Alisotrichia Flint, 1964, p. 46; 1968a, p. 34; 1968b, p. 39.

[Type species: Alisotrichia hirudopsis Flint, 1964, by original designation.]

ADULT.—Ocelli 2 or 3 in male and female. Basal

antennal segment of male often enlarged and covering

half of face. Spurs 0, 2, 4, 0, 2, 3, or 0, 3, 4. Pronotum

with anterior surface sclerotized and slightly produced

dorsally. Mesoscutellum generally with a transverse

suture, rarely obsolete or very obscure; metascutellum

nearly triangular, with lateral angles slightly truncate.

Wings very narrow and attenuate. Male genitalia: Extremely complex and often modified beyond certain

homology. Eighth sternum often with a process from

posterior margin. Ninth segment open ventrally, anterolateral angle often prolonged. Clasper various, often

impossible to recognize as such, as are lateral penis

sheaths, subgenital plate, tenth tergite, etc. Aedeagus

generally simple, often constricted near midlength and

with simple to complex internal structure, but never

with basal loop, midlength complex with lateral "windows," etc. Female genitalia: Seventh tergum with

various modifications. Eighth and ninth segments

simple, with anterolateral rods. Bursa copulatrix a

simple internal ring or sphere.

LARVA.—Stem of frontoclypeal suture variously

developed, arms partially or wholly lacking; tentorial

pit poorly developed. Head without rugosity or other

modifications. Pronotum divided longitudinally (only

partially so in species 3), mesonotum and metanotum

entire (divided in A. argentilinea). Thoracic nota,

legs, and abdominal tergites with modified setae, these

are enlarged, comparatively short, generally truncate
NUMBER 60 25

and dark. Abdomen tapering rather gradually posteriad, no segments greatly expanded; with 8 or 9

tergites, tergites 1-8 covering most of dorsum of each

segment, each with a central dark area generally with

3 contiguous pores, anterolateral angle of each segment with a small setiferous sclerite; ninth tergite

shield shaped without pores. Anal prolegs long, extending posteriad; claw with enlarged apicodorsal seta.

The genus is difficult to define without finding an

exception in one species or another. There are two

characters, however, which seem to define the genus

in the adult stage at this time: lack of a tibial spur

on the foreleg, and lack of midlength complex on the

aedeagus. In addition, the female genitalia has the

dorsum of the seventh segment modified and a very

simple bursa, rather than the large, complex bursa of

the other genera. The larvae of those species known

are very distinctive: the middle abdominal segments

are not enlarged and they bear distinctive enlarged

setae.

It is possible to recognize several groups of species

based on adult characters such as number of ocelli,

spurs, and modification of the antennae. There are

also several types of larvae to be observed, but too few

of them have been correlated with the adult stage.

However, when adults and larvae are correlated for

more species, it may become clear that Alisotrichia

should be divided into several genera or subgenera.

Key to Species of Alisotrichia

ADULTS

1. Midleg with a preapical spur 2

Midleg lacking a preapical spur 4

2. Claspers (?) fused into a single, median rodlike structure septempunctata

Claspers paired, not rodlike 3

3. With a long, mesal process extending ventrad from tenth tergum (?) dominicensis

Without such a structure wirthi

4. Basal antennal segment terete; 3 ocelli 5

Basal antennal segment enlarged and flattened; with 2 ocelli or third ocellus reduced 7

5. Clasper (?) sharply decurved apically 6

Clasper extending almost directly posteriad trifida

6. Aedeagus with 5 small, curved, internal spines in addition to a central structure blantoni

Aedeagus with a pair of long, lateral spines and a central structure tatnaza

7. Eighth sternum with posterior margin bearing a spine or other process 8

Eighth sternum without any type of process 11

8. Posterolateral margin of eight sternum bearing 3 processes argentilinea

Eighth sternum differently ornamented 9

9. Posterolateral margin of eighth sternum bearing a decurved hook hirudopsis

Eighth sternum differently ornamented 10

10. Posterolateral margin of eighth sternum with a seta bearing knob, and a mesally directed

process orophila

With a dorsolateral lobe and a pair of mesoventral spines lobata

11. Genitalia with an elongate and well-developed lateral penis sheath chorra

Lateral penis sheath reduced to a small, knoblike structure quemaim

LARVAE

1. Abdomen with 8 tergites (including 9th) 2

Abdomen with 9 tergites 3

2. Mesonotum and metanotum divided longitudinally argentilinea

Mesonotum and metanotum entire hirudopsis

3. Enlarged setae broad, pointed; dorsal seta of femur feathered species 2

Enlarged setae, narrower, truncate; dorsal seta of femur simple 4

4. Abdominal tergites 2-7 with clearly defined pores 5

Tergites with dark marks, but without pores species 3

5. Tergites with the pores surrounded by dark mark orophila

Tergites with pores in front of dark mark species 1
26

AHsotrichia hirudopsis Flint

FIGURES 165-168, 210-215, 229, 247

AHsotrichia hirudopsis Flint, 1964, p. 47.

This, the type species of the genus, is very distinctive.

It is perhaps closest to the Jamaican A. argentilinea

Flint, but is easily recognized by the very different processes from the eighth sternum.

ADULT.—Length of forewing, 2 mm. Color black;

with silver white hair dorsally on head and antennae,

transversely on metanotum, and in spots of forewing.

Male genitalia: Seventh sternum with a small, pointed

process. Eighth sternum produced into apicolateral

processes, terminating in a black, decurved hook. Ninth

segment heavily sclerotized marginally, bearing a long

anterolateral process, apically produced into a bulbous

structure with a middorsal thickening, extending freely

apically. Tenth tergites flattened, elongate plates.

Aedeagus conical basally, tubular at midlength, membranous and apparently enlarged apically.

LARVA.—Length to 2.5 mm. Sclerites pale brown.

Pronotum divided longitudinally, mesonotum and

metanotum entire; mesonotal and metanotal tergites

surrounded by small sclerotized points. Legs extending

laterad in plane of body; coxae and femora with dorsal

combs of setae. Enlarged setae of thoracic nota, legs,

and abdominal tergites, dark, short, and truncate. Abdomen (excluding anal prolegs) subequal in length to

thorax, 11/2 times as long as width of widest segment.

Abdomen with 8 tergites, 5 or 6 anteriormost with posterior sclerotized points; tergites 1-8 with a large central opening composed of 3 small pores; anterolateral

sclerites large. Anal claw with large, black apicodorsal

seta.

MATERIAL.—PUERTO RICO: El Yunque, stream

at km. 6.4, Route 191, 16 Aug. 1961, Flint and Spangler, cf holotype, $ allotype, 103 c? 32? paratypes,

larvae, and pupae; same, but 31 Dec. 1962, P. J.

Spangler, 232d1 15$ paratypes; Rio de Bayamon,

Route 156, km. 15.5, 19 Aug. 1961, Flint and Spangler,

2 c? paratypes; Yauco-Lares Road. km. 29, 20 Jan.

1954, Maldonado and Medina, 4c? paratypes; Maricao Fish Hatchery, 23 Dec. 1962, P. J. Spangler, 1 $

paratype.

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

AHsotrichia argentilinea Flint

FIGURES 169-171, 216-217, 246

AHsotrichia argentilinea Flint, 1968a, p. 34.

This is another extremely distinctive species, belonging

to the typical section of the genus. The lateral spines

of the eighth sternum and odd structures of the tenth

tergum are distinctive.

ADULT.—Length of forewing, 2.5 mm. Color brown;

antennae, head, and mesonotum dorsally with silvery

hair; forewing with a longitudinally silvery band

ending in a transverse line, apex white. Ocelli 2 c? and

° . Basal antennal segment greatly enlarged and covering face. Spurs 0, 2, 4. Male genitalia: Seventh

sternum with a short apicomesal process. Eighth

sternum with 3 lateral processes, dorsalmost terminating in a heavy spine, ventral one curved mesad;

posterior margin with enlarged setae submesally.

Ninth segment mostly rodlike, with long anterolateral

projections, posteriorly with slender dorsolateral processes, and a basal plate sclerotized marginally. Tenth

tergum consisting of a pair of dorsal, elongate plates

slightly enlarged apically. Aedeagus tubular, conical

basally, enlarged and indistinct within tenth tergum,

ending in a tubule.

LARVA.—Length to 2.5 mm. Sclerites pale brown.

All thoracic nota divided longitudinally; mesonotal

and metanotal tergites surrounded by small sclerotized

points. Legs extending laterad in plane of body; coxae

and femora with dorsal combs of setae. Enlarged setae

of thoracic nota, legs, and abdominal tergites short,

dark and truncate. Abdomen (excluding anal prolegs)

subequal in length to thorax, about twice as long as

width of widest segment. Abdomen with 8 tergites, anterior 5 or 6 bordered posteriorly with small sclerotized

points; tergites 1-8 each with a rectangular anteromesal excision, central opening composed of 3 small

pores; anterolateral sclerites large. Anal claw with

large, black apicodorsal seta.

MATERIAL.—JAMAICA: ST. ANDREW: Yallahs

River, Chestervale, 17 July 1963, Flint and Farr, c?

holotype, $ allotype, 1 c? paratype; same, but 24-25

July 1962, 8c? 6 ° paratypes, larvae, and pupae; Hope

River, near Newcastle, at milepost 16.5, 30 July 1962,

Flint and Farr, lc? paratype; same, but 18 July 1963,

6 c? paratypes.
NUMBER 60 27

Alisotrichia orophila Flint

FIGURES 172-174, 218, 245

Alisotrichia orophila Flint, 1968b, p. 41.

Considering the head and appendages, this species

belongs to the typical group, but is very distinctive in

the male genitalia. The bifurcate process from the

lateral margin of the eighth sternum and general

simplicity of the remainder of the genitalia are

diagnostic.

ADULT.—Length of forewing, 1.2 mm. Color grayish;

forewing with bands of silvery hair. Ocelli 2 cf and 3

$ . Basal antennal segment enlarged and covering face.

Spurs 0, 2, 4. Male genitalia: No sternal processes.

Eighth sternum bearing a long spine dorsolaterally;

apicolaterally with a process ending in a mesally curving, furcate hook. Ninth segment with a very long,

slender anterolateral process and a dorsomesal sclerite.

Tenth tergum with a pair of dorsal straplike sclerites

and a membranous apical lobe. Aedeagus tubular, base

conical.

LARVA.—Length to 1.5 mm. Sclerites straw colored.

Pronotum divided longitudinally; mesonotum and

metanotum entire; mesonotum and metanotum without apparent sclerotized points. Legs extending

laterally in plane of body; coxae and femora with

dorsal combs of setae. Enlarged setae of thoracic nota,

legs, and abdominal tergites short, dark, and truncate.

Abdomen (excluding anal prolegs) slightly longer

than thorax, slightly more than twice as long as

width of widest segment. Abdomen with 9 tergites;

anteromost closely associated with metanotum, with

anterolateral sclerite; tergite 1 with a small central

darkening, but no pores, tergites 2-8 with a dark mark

surrounding a central opening composed of 3 indistinct

pores, without posterior sclerotized points; anterolateral sclerites large. Anal claw with an enlarged

apicodorsal seta.

MATERIAL.—DOMINICA: d'Leau Gommier, 15

Feb. 1965, W. W. Wirth, <$ holotype; same, but 27

April 1964, O. S. Flint, Jr., 1 larva, 2 pupae, 1 cf 1 ?

metamorphotypes; 2.5 miles east of Pont Casse, 16

Jan. 1965, W. W. Wirth, ? allotype; .4 miles east of

Pont Casse, 6 May 1964, O. S. Flint, Jr., 1 cf paratype.

Alisotrichia lobata Flint

FIGURES 175-177, 246

Alisotrichia lobata Flint, 1968b, p. 43.

This species appears to belong to the typical group

of Alisotrichia, although it is not closely related to any

other known species. The shape of the eighth sternum

and the long spine and shape of the ventromesal complex of the ninth segment are distinctive.

ADULT.—Length of forewing, 1.5 mm. Color grayish; forewing with alternating bands of silvery and

fuscus hairs. Ocelli 2 c?, 3 $ . Basal antennal segment

enlarged and covering face. Spurs 0, 2, 4. Male genitalia: Seventh sternum with an apicomesal process.

Eighth segment with a large, rounded anterolateral

lobe, ventromesal angles prolonged into sharp spines

separated by a narrow mesal excision. Ninth segment

with long, very slender, anterolateral processes. Tenth

tergum with a pair of dorsal straplike sclerites, with

ventrolateral margin sclerotized. Ventrolateral angle of

ninth segment with a long, slender process; ventromesally with a ring surrounded by a hoodlike structure. Aedeagus tubular, base slightly enlarged.

MATERIAL.—DOMINICA: Clarke Hall, malaise

trap, 11-20 Jan. 1965, W. W. Wirth, cf holotype;

same, but Cocoa Trail, 18 Jan. 1965, $ allotype, 2 ?

paratypes; Fond Figues, 3 Feb. 1965, W. W. Wirth,

1 cf paratype.

Alisotrichia chorra, new species

FIGURES 178-181, 247

This species is perhaps the most distinctive of the

continental species found to date, and the most like

the insular species. The elongate genital capsule,

large tenth tergum, and especially the structure of the

aedeagus are very distinctive.

ADULT.—Length of forewing, 2 mm. Color unknown; completely cleared and in alcohol. Basal

antennal segment enlarged, platelike, covering face.

Ocelli 2. Spurs 0, 2, 4. Male genitalia: No sternal

process. Eighth sternum elongate, with small, rounded,

ventrolateral lobes. Ninth segment elongate, with

slender anterolateral processes, posterior margin

deeply divided middorsally, and with a pair of long,

slender sclerites lying within division; posterolateral

margin bearing a large decurved hook; apicoventrally

with a small rounded process. Tenth tergum broad in
28 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

lateral aspect, rather bell shaped, open dorsally.

Aedeagus sharply constricted subbasally, tubular

beyond, lateral processes terminating in a heavy,

hooked structure; centrally with a more lightly

sclerotized structure bearing a pair of winglike lateral

processes.

MATERIAL.—Holotype, male. MEXICO: CHIAPAS :

El Chorreadero, 6.4 miles south of Chiapa de Corzo,

11 Aug. 1967, O. S. Flint, Jr. USNM Type 70917.

Alisotrichia quemada, new species

FIGURES 182-185, 248

This species is apparently a member of the typical

group, although transitional in that the third ocellus

is still present. The combination of platelike basal

antennal segments and presence of the third ocellus

are unique. The genitalia are also distinctive, especially

the aedeagus with its long internal spine.

ADULT.—Length of forewing, 1.5 mm. Color fuscus,

nearly immaculate. Basal antennal segment enlarged

and nearly covering face. Ocelli 3; anteromesal ocellus

sunken and slightly reduced in size. Spurs 0, 2, 3. Male

genitalia: Seventh sternum with a small, rounded

apicomesal process. Eighth sternum with posterolateral angles produced into rounded knobs. Ninth segment with anterolateral angle narrowly produced;

posterior margin deeply, and broadly divided dorsally

with a pair of linear sclerites in division; posterolateral

margin bearing a slender, decurved sclerite from

its inner surface; apicoventrally with an indistinct

sclerite. Tenth tergum very narrow, consisting of

lateral bands united midventrally. Aedeagus tubular,

slightly constricted, with a subapical ring, and a long

slender internal spine.

MATERIAL.—Holotype, male. MEXICO: SAN LUIS

POTOSI: Tierra Blanca, 6.3 miles south of Tamazunchale, 5 Aug. 1966, O. S. Flint, Jr. USNM Type

70918. Paratypes: Same data, 1 cf ; Rancho Quemado,

3.5 miles south of Tamazunchale, 4-6 Aug. 1966, 1 <S •

Alisotrichia blantoni, new species

FIGURES 186-189, 249

This species seems closely related to A. quemada on

one side, and a little more distantly to A. tamaza on

the other. All three are quite similar in appearance of

the male genitalia, although differing in details. From

quemada it differs in having unmodified basal antennal

segments, and from both in the genitalic structure,

especially the aedeagus which possesses several internal

spines in blantoni.

ADULT.—Length of forewing, 2 mm. Specimens

cleared and in alcohol. Basal antennal segment cylindrical, about lJ/2 times as long as broad. Ocelli 3.

Spurs 0, 2, 4. Male genitalia: No sternal processes.

Eighth sternum proportionately short and broad,

posteroventral margin concave. Ninth segment with

anterolateral angle slightly produced; posterior margin deeply and broadly emarginate, dorsally with a

pair of crescentic sclerites; posterolateral margin bearing a slender process, first directed mesally then

ventrad; midventrally with a bordered rectangular

emargination. Aedeagus slightly constricted subbasally, with a central tubule, becoming flared and

open apically, flanked by two large curved spines and

beyond with 3 or 4 smaller curved spines.

MATERIAL.—Holotype, male. MEXICO: SAN LUIS

POTOSI : Rancho Quemado, 3.5 miles south of Tamazunchale, 4-6 Aug. 1966, O. S. Flint, Jr. USNM

Type 70919. Paratypes: Same data, lo* (lacking

abdomen); El Salto, 8 May 1964, F. S. Blanton et al.,

32o".

Alisotrichia tamaza, new species

FIGURES 190-193, 248

This is probably closest to the following species, trifida,

although it also shows some similarity to blantoni.

From these, it is recognized by the narrow, sharply

decurved lateral process of the ninth segment, and

even more clearly by the internal structure of the

aedeagus.

ADULT.—Length of forewing, 2.5-3 mm. Color

fuscus, with scattered silvery hairs especially on

mesonotum and apically on forewings. Basal antennal

segment simple, about \y% times as long as broad.

Ocelli 3. Spurs 0, 2, 4. Male genitalia: No sternal

processes. Eighth sternum short and broad, posterior

margin concave. Ninth segment with anterolateral

angle truncate; posterior margin broadly emarginate

dorsally with a pair of crescentic sclerites; posterolateral margin bearing a slender process arising from

a convoluted base, and angled sharply ventrad; apicoventrally with a bordered, ovate emargination. Aedeagus constricted subbasally, with a central tubule, apex
NUMBER 60 29

internally with 3 long processes, lateral ones bearing

basally a heavily sclerotized plate.

MATERIAL.—Holotype, male. MEXICO: OAXACA:

Tamazulapan, 7-8 June 1967, Flint and Ortiz. USNM

Type 70920. Paratypes: Same data, 8tf.

Alisotrichia trifida, new species

FIGURES 194-197, 248

Although very similar to A. tamaza, this species is

quickly recognized by the broader, less angled lateral

process of the ninth segment and the broad, apicolateral processes of the aedeagus.

ADULT.—Length of forewing, 1.5 mm. Color fuscus,

sparsely overlain with silvery hairs, face white. Basal

antennal segment unmodified, slightly longer than

broad. Ocelli 3. Spurs 0, 2, 4. Male genitalia: No

sternal processes. Eighth sternum short and broad,

posterior margin evenly concave. Ninth segment with

anterolateral angle slightly and broadly produced;

posterior margin broadly emarginate, with a pair of

projecting, crescentic sclerites; posterolateral margin

bearing a broad, slightly curved process with an angulate tip; midventrally with a deep emargination.

Aedeagus constructed subbasally, with a central tubule,

apex internally with 3 processes, lateral ones being

broad dorsoventrally and with a dark lateral sclerite

basally.

MATERIAL.—Holotype, male. GUATEMALA:

IZABAL: Las Escobas near Matias de Galvez, 14-16

Aug. 1965, Flint, Spangler, and Ortiz. USNM Type

70921. Paratype: Same data, lcf •

Alisotrichia dominicensis Flint

FIGURES 198-201, 247

Alisotrichia dominicensis Flint 1968b, p. 44.

This rather odd species is probably most closely related

to the following, wirthi Flint. It is easily recognized by

the straplike, tenth tergum with its pendant ventromesal process.

ADULT.—Length of forewing, 2 mm. Color mostly

fuscus; antenna yellowish; face and mesonotum with

white hairs, forewing white basally and at midlength.

Ocelli 3. Basal antennal segment unmodified. Spurs

0, 3, 4. Male genitalia: Seventh sternum with an

apicomesal process. Eighth sternum broad, slightly produced apicolaterally. Ninth segment heavily sclerotized

along margins, somewhat produced anterolaterally. A

semimembranous, bilobed structure arising ventrolaterally of ninth segment. Tenth tergum consisting

of an elongate, dorsomesal, straplike structure slightly

upturned apically, and an elongate, pendant structure

ventromesally. Aedeagus tubular, constructed at midlength; apical portion with 2 small internal spines.

MATERIAL.—DOMINICA: 2.2 miles east of Pont

Casse, 7 May 1964, O. S. Flint, Jr., cf holotype; same,

but 3 May 1964, 1 $ paratype; 2.5 miles east of Pont

Casse, 16 Jan. 1965, W. W. Wirth, ? allotype, 2 ?

paratypes; Fond Figues, 25 Jan. 1965, W. W. Wirth,

2cf paratypes; Morne Nicholls, 9 Nov. 1964, P. J.

Spangler, 1 9 paratype.

Alisotrichia wirthi Flint

FIGURES 202-205, 248

Alisptrichia wirthi Flint, 1968b, p. 46.

This species is probably closest to the preceding, A.

dominicensis Flint, but is easily distinguished by the

structure of the male genitalia, especially the structure of the claspers and tenth tergum.

ADULT.—Length of forewing, 2.5 mm. Color in

alcohol uniformly fuscus. Antennae with basal segments unmodified. Ocelli 3. Spurs 0, 3, 4. Male genitalia: Lacking sternal processes. Eighth tergum broad;

sternum produced apicoventrally, truncate. Ninth segment quadrate in lateral aspect, posterior margin raised

into a dorsomesal point, posterolateral margin produced into a small rounded lateral lobe; ventrolaterally

with a rodlike sclerite arising near anterior margin.

Clasper with a terete ventrolateral lobe and a flattened

mesal lobe bearing a stout seta dorsally. Tenth tergum

with a pair of elongate, pointed sclerites dorsally, a

triangular sclerite laterally, and a flattened mesoventral

sclerite lying within the mesal lobes of the claspers.

Aedeagus sharply constructed at midlength; apical

portion with a lightly sclerotized internal spine.

MATERIAL.—DOMINICA: Fond Figues, 13 March

1965, W. W. Wirth, cf holotype; same, but 6 April

1964, O. S. Flint, Jr., cf paratype.

Alisotrichia septempunctata Flint

FIGURES 206-209, 249

Alisotrichia septempunctata Flint, 1968b, p. 46.

This is a very distinctive species, both in appearance

and in the structure of the male genitalia. The rodlike

structure of the claspers is reminiscent of the genus
30 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

Leucotrichia, but the structure of the aedeagus clearly

indicates that the species belongs to Alisotrichia.

ADULT.—Length of forewing, 2.5 mm. Black; each

forewing with 3 bright green spots, mesonotum with

a bright green mesal spot. Basal antennal segment

unmodified. Ocelli 3. Spurs 0, 3, 4. Male genitalia:

No sternal processes. Eighth tergum broad; sternum

slightly produced and rounded ventrolaterally. Ninth

segment with anterolateral angles greatly produced;

with posterolateral margin produced into an upturned

pointed process. Claspers completely fused, developed

into a long, rodlike, ventromesal process. A terete

semimembranous process arising mesad of posterolateral process of ninth segment and twisted around it.

Lateral penis sheath broad, produced into apicomesal

beak; dorsally with a pair of parenthesislike sclerites.

Aedeagus constricted, apical portion with several pairs

of elongate internal spines; a ventral tube slightly

enlarged distally.

MATERIAL.—DOMINICA: 2.2 miles east of Pont

Casse, 14 April 1964, O. S. Flint, Jr., holotype <f.

Alisotrichia species 1

FIGURE 219

Alisotrichia species 1, Flint, 1968b, p. 43.

The larva here described is very similar to that of A.

orophila Flint, but is a bit larger, and the thoracic

nota and abdominal terga possess a few more enlarged

setae. The first abdominal tergum lacks the central

dark mark, and the pores on the following segments are

in front of the black mark rather than surrounded by

it as in orophila.

LARVA.—Length 1.5 mm. Body ruptured and

strongly contracted, thereby distorting proportions.

Sclerites pale brown. Pronotum divided longitudinally;

mesonotum and metanotum entire; without surrounding sclerotized points. Legs probably extending laterad

in plane of body; coxae and femora with dorsal combs

of enlarged setae. Enlarged setae of thoracic nota and

abdominal tergites short, black and truncate, setae

laterally on thorax and on legs longer and more

pointed. Abdomen with 9 tergites; anteromost closely

associated with metanotum, without lateral sclerites or

central dark mark; tergites 2-8 with 3 pores anteriad

to posteromesal dark mark; anterolateral sclerites large.

Anal claw with enlarged apicodorsal seta.

MATERIAL.—DOMINICA: .5 mile south of Pont

Casse, 22-24 July 1963, O. S. Flint, Jr., 1 larva.

Alisotrichia species 2

FIGURE 227

Alisotrichia species 2, Flint, 1968b, p. 47.

The larvae here described seem conspecific, and may

very well be those of A. dominicensis or wirtki. They

are very distinctive in terms of body proportions, shape

of enlarged setae, sclerites, and legs.

LARVA.—Length to 3.5 mm. Sclerites brown. Pronotum divided longitudinally; mesonotum and metanotum entire; mesonotal and metanotal tergites with

small sclerotized points anteriorly, and small sclerites

posteriorly. Legs shorter, apparently operating in a

plane vertically to that of body; coxae and femora

with a single dorsal seta each, those of femora feathered. Enlarged setae of thoracic nota, legs, and abdomen long, dark, and pointed, arising from conspicuous pale spots. Abdomen (excluding anal prolegs) over

twice as long as thorax, 2% times as long as width at

widest segment. Abdomen with 9 tergites; anteromost

on a distinct (but small) segment; segments 1-8 with

small sclerotized points bordering tergites posteriorly,

with small intercalary sclerites between segments, and

with a black mark without pores centrally; anterolateral sclerites small, capping lateral protuberances. Anal

claw with apicodorsal seta only slightly enlarged, pale.

MATERIAL.—DOMINICA: Riviere Laurent, 21

July 1963, O. S. Flint, Jr., 1 larva; Geneva Estate, 9

Dec. 1964, P. J. Spangler, 1 larva; Fond Figues River,

9 Feb. 1965, W. W. Wirth, 1 larva.

Alisotrichia species 3

FIGURES 220-221

I am here describing the few larval specimens from the

continent which are all very similar. The specimen

from Utah, however, differs from those of Central

America (which are illustrated) in being larger, and

bearing more enlarged setae on the thoracic nota and

abdominal tergites.

LARVA.—Length to 3 mm. Sclerites brown or pale

brown. Pronotum divided for posterior third only;

mesonotum and metanotum entire; no sclerotized

points. Legs extending laterad, but operating in a more

nearly vertical plane; coxae and femora each with a
NUMBER 60 31

single dorsal seta. Enlarged setae of thoracic nota, legs,

and abdominal tergites long, dark, and blunt. Abdomen (excluding anal prolegs) V/2 times as long as

thorax, 3j/a times as long as width of widest segment.

Abdomen with 9 tergites; anteromost on a distinct segment; without sclerotized points or intercalated sclerites, with a black mark centrally but without a central pore; anterolateral sclerite small, capping lateral

protuberances. Anal claw with apicodorsal seta large

and black.

MATERIAL.—U.S.A.: UTAH: Washington Co., City

Springs, .5 mile north of St. George, 2,900 feet, 8 Oct.

1961, A. Dean Stock, 1 larva. MEXICO: MORELOS:

Xochitepec, 12-14 July 1965, Flint and Ortiz, 2 larvae.

COSTA RICA: PUNTARENAS : Rio Seco, northwest of

Esparta, 23 July 1967, O. S. Flint, Jr., 6 larvae.

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1944. The Caddis Flies, or Trichoptera, of Illinois. Bulletin Illinois Natural History Survey, 23(1): 1-326.

1956. Evolution and Classification of the Mountain

Caddisflies. Pages 1-213. Urbana, Illinois.

Ulmer, Georg

1957. Kocherfliegen (Trichopteren) von den SundaInseln. Teil III. Archiv fur Hydropiologie, Supplement, 23(2/4):109-470.

379-699 O—<T
32

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

FIGURES 1-8.—Leucotrichia chiriquiensis, new species: 1, head, dorsal. L. melleopicta Mosely:

2, head and thorax, dorsal. L. imitator, new species: 3, head, dorsal. L. sarita Ross: 4, head

and pronotum, dorsal. L. pictipes (Banks): 5, head, pronotum, and tegulae, dorsal; 6, basal

segments of antenna, anterior. L. fairchildi, new species: 7, head, dorsal; 8, basal segments of

antenna, anterior.
NUMBER 60 33

FIGURES 9-18.—Leucotrichia melleopicta Mosely: 9, male genitalia, ventral; 10, aedeagus,

dorsal. L. viridis Flint: 11, male genitalia, lateral; 12, male genitalia, ventral; 13, aedeagus,

dorsal. L. limpia Ross: 14, male genitalia, lateral; 15, male genitalia, dorsal; 16, male genitalia,

ventral; 17, aedeagus, dorsal; 18, aedeagus, lateral.

379-699 O—70 4
34

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

FIGURES 19-28.—Leiuotrichia tubifex Flint: 19, male genitalia, lateral; 20, male genitalia,

dorsal; 21, male genitalia, ventral; 22, aedeagus, lateral; 23, aedeagus, dorsal. L. chiriquiensis,

new species: 24, male genitalia, lateral; 25, male genitalia, dorsal; 26, male genitalia, ventral;

27, aedeagus, dorsal; 28, aedeagus, lateral.
NUMBER 60 35

FIGURES 29-41.—Leucotrichia sarita Ross: 29, male genitalia, lateral; 30, male genitalia, dorsal;

31, male genitalia, ventral; 32, aedeagus, lateral. L. imitator, new species: 33, male genitalia,

lateral; 34, male genitalia, dorsal; 35, male genitalia, ventral; 36, aedeagus, lateral; 37, tip of

aedeagus, dorsal. L. pictipes (Banks): 38, aedeagus, lateral; 39, tip of aedeagus, dorsal; 40,

male genitalia, lateral; 41, male genitalia, ventral.
36

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

^

54

FIGURES 42-54.—Leucotrichia tubifex Flint: 42, larval ninth, eighth, and seventh tergites, dorsal;

43, larval head, anterior; 44, larval thoracic nota and first abdominal tergum, dorsal; 45, larval

mandibles; 46, larval anal proleg, lateral. L. pictipes (Banks): 47, anterolateral angle of larval

mesonotum, dorsal. L. sarita Ross: 48, anterolateral angle of larval mesonotum, dorsal. L.

limpia Ross: 49, larval anal proleg, lateral. Zumatrichia antilliensis Flint: 50, larval head,

anterior; 51, larval labrum; 52, larval mandible; 53, larval ninth, eighth, and seventh tergites,

dorsal; 54, larval thoracic nota and first abdominal tergum, dorsal.
NUMBER 60 37

SI

FIGURES 55-69.—Costatrichia lodora Mosely: 55, male gentalia, lateral; 56, male genitalia,

dorsal; 57, male genitalia, ventral (55-57 after Mosely) ; 58, male genitalia, lateral; 59, male

genitalia, dorsal; 60, male genitalia, ventral; 61, aedeagus, lateral. C. panamensis Flint: 62,

male genitalia, lateral; 63, male genitalia, dorsal; 64, male genitalia, ventral; 65, aedeagus,

lateral. C. bipartite, new species: 66, male genitalia, lateral; 67, male genitalia, dorsal; 68, male

genitalia, ventral; 69, aedeagus, lateral (midlength complex twisted).
38 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

75 76

79

FIGURES 70-81.—Costatrichia tripartita, new species: 70, male genitalia, lateral; 71, male

genitalia, dorsal; 72, male genitalia, ventral; 73, aedeagus, lateral. C. spinifera, new species:

74, male genitalia, lateral; 75, male genitalia, dorsal; 76, male genitalia, ventral; 77, aedeagus,

lateral. C. simplex, new species: 78, male genitalia, lateral; 79, male genitalia, dorsal; 80, male

genitalia, ventral; 81, aedeagus, lateral.
NUMBER 60

39

FIGURES 82-69.—Anehitrichia spangleri, new genus, new species: 82, male genitalia, lateral;

83, male genitalia, ventral; 84, male genitalia, dorsal; 85, aedeagus, lateral; 86, wings; 87, larval

thoracic nota and first abdominal tergum, dorsal; 88, femur of larval foreleg, posterior! 89,

larval ninth, eighth, and seventh tergites, dorsal.
40 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

FIGURES 90-100.—Zumatrichia multisetosa, new species: 90, male genitalia, lateral; 91, male

genitalia, dorsal; 92, male genitalia, ventral; 93, aedeagus, lateral. Z. echinata Flint: 94, male

genitalia, lateral; 95, male genitalia, ventral; 96, aedeagus, lateral. Z. antilliensis Flint: 97,

aedeagus, lateral; 98, male genitalia, lateral; 99, male genitalia, dorsal; 100, male genitalia,

ventral.
NUMBER 60 41

FIGURES 101—108.—Zumatrichia galtena Mosely: 101, male genitalia, lateral; 102, male

gentitalia, dorsal; 103, male genitalia, ventral; 104, aedeagus, lateral. Z. satuda, new species:

105, male genitalia, lateral; 106, male genitalia, dorsal; 107, male genitalia, ventral; 108,

aedeagus, lateral.
42

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

112 111

FIGURES 109-116.—Zumatrichia vieja, new species: 109, male genitalia, lateral; 110, male

genitalia, dorsal; 111, male genitalia, ventral; 112, aedeagus, lateral. Z. chiriquiensis, new

species: 113, male genitalia, lateral; 114, male genitalia, dorsal; 115, male genitalia, ventral; 116,

aedeagus, lateral.
NUMBER 60 43

FIGURES 117-124.—Zumatrichia strobilina, new species: 117, male genitalia, lateral; 118, male

genitalia, dorsal; 119, male genitalia, ventral; 120, aedeagus, lateral. Z. notosa (Ross): 121,

male genitalia, lateral; 122, male genitalia, dorsal; 123, male genitalia, ventral; 124, aedeagus,

lateral.
44

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

135

FIGURES 125-136.—Zumatrichia angulata, new species: 125, male genitalia, lateral; 126, male

genitalia, dorsal; 127, male genitalia, ventral; 128, aedeagus, lateral. Z. bifida, new species:

129, male genitalia, lateral; 130, male genitalia, dorsal; 131, male genitalia, ventral; 132,

aedeagus, lateral. Z. diamphidia, new species: 133, male genitalia, lateral; 134, male genitalia,

dorsal; 135, male genitalia, ventral; 136, aedeagus, lateral.
NUMBER 60 45

FIGURES 137-144.—Zumatrichia attenuata, new species: 137, male genitalia, lateral; 138, male

genitalia, dorsal; 139, male genitalia, ventral; 140, aedeagus, lateral. Z. palmar a, new species:

141, male genitalia, lateral; 142, male genitalia, dorsal; 143, male genitalia, ventral; 144,

aedeagus, lateral.
46

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

155

FIGURE. 145-156.—Zumatrichia anomaloptera Flint: 145, male genitalia, lateral; 146, male

genitalia, dorsal; 147, male genitalia, ventral; 148, aedeagus, lateral. Z. filosa Mosley: 149,

male genitalia, lateral; 150, male genitalia, dorsal; 151, male genitalia, ventral; 152, aedeagus,

lateral. Z. caudifera, new species: 153, male genitalia, lateral; 154, male genitalia, dorsal; 155,

male genitalia, ventral; 156, aedeagus, lateral.
NUMBER 60 47

1S2 1S3

FIGURES 157-164.—Zumatriehia teapa, new species: 157, male genitalia, lateral; 158, male

genitalia, dorsal; 159, male genitalia, ventral; 160, aedeagus, lateral. Z. rhamphoides, new

species: 161, male genitalia, lateral; 162, male genitalia, dorsal; 163, male genitalia, ventral; 164,

aedeagus, lateral.
48

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

176

FIGURES 165-177.—Alisotrichia hirudopsis Flint: 165, male genitalia, lateral; 166, male genitalia,

dorsal; 167, male maxillary palpus; 168, male antenna. A. argentilinea Flint: 169, male genitalia, lateral; 170, male genitalia, dorsal; 171, male genitalia, ventral. A. orophila Flint: 172,

male genitalia, lateral; 173, male genitalia, dorsal; 174, eighth sternum, ventral. A. lobata Flint:

175, male genitalia, dorsal; 176, eighth sternum, ventral; 177, male genitalia, lateral.
NUMBER 60 49

1S3

IN

FIGURES 178-193.—Alisotrichia chorra, new species: 178, male genitalia, lateral; 179, male

genitalia, dorsal; 180, male genitalia, ventral; 181, aedeagus, dorsal. A. quemada, new species:

182, male genitalia, lateral; 183, male genitalia, dorsal; 184, male genitalia, ventral; 185,

aedeagus, dorsal. A. blantoni, new species: 186, male genitalia, lateral; 187, male genitalia,

dorsal; 188, male genitalia, ventral; 189, aedeagus, dorsal. A. tamaza, new species: 190, male

genitalia, lateral; 191, male genitalia, dorsal; 192, male genitalia, ventral; 193, aedeagus dorsal.

379-699 O - 70 - 5
50

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

FIGURES 194-209.—Alisotrichia trifida, new species: 194, male genitalia, lateral (eighth segment omitted); 195, male genitalia, dorsal; 196, male genitalia, ventral; 197, aedeagus, dorsal.

A. dominieensis Flint: 198, male genitalia, lateral; 199, male genitalia, dorsal; 200, male genitalia, ventral; 201, aedeagus, lateral. A. wirthi Flint: 202, male genitalia, lateral; 203, male

genitalia, dorsal; 204, male genitalia, ventral; 205, aedeagus, lateral. A. septempunctata Flint:

206, male genitalia, lateral; 207, male genitalia, dorsal; 208, male genitalia, ventral; 209,

aedeagus, dorsal.
NUMBER 60 51

219

FIGURES 210-221.—Alisotrichia hirudopsis Flint: 210, larval head, anterior; 211, larval mandible; 212, larval labrum; 213, larval anal proleg, lateral; 214, larval ninth tergite, dorsal;

215, larval thoracic nota and first abdominal tergum, dorsal. A. argentilinea Flint: 216, larval

meso- and metanota, dorsal; 217, femur of larval foreleg, posterior. A. orophila Flint: 218, larval

thoracic nota and first two abdominal terga, dorsal. A. species 1: 219, larval thoracic nota and

first two abdominal terga, dorsal. A. species 3: 220, larval thoracic nota and first abdominal

tergum, dorsal; 221, femur of larval foreleg, posterior.
52

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

225

FIGURES 222-226.—Leucotrichia gomezi, new species: 222, larval head, anterior; 223, male

genitalia, dorsal; 224, male genitalia, lateral; 225, male genitalia, ventral; 226, aedeagus, lateral.
NUMBER 60 53

228

FIGURES 227-228.—Alisotrichia species 2: 227, larva, dorsal. Zumatrichia antilliensis Flint:

228, larva, dorsal.
54 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

229

FIGURE 229.—Alisotrichia hirudopsis Flint, larva, dorsal.
NUMBER 60 55

230 231

232 233

234 235

FIGURES 230-235.—Leucotrichia limpia Ross: 230, larval head, anterior. L. chiriquiensis, new

species: 231, larval head, anterior. L. tubifex Flint: 232, larval head, anterior. L. imitator,

new species: 233, larval head, anterior. Anchitrichia spangleri, new genus, new species: 234,

larval head, anterior. Zumatrichia multisetosa, new species: 235, larval head, anterior.
56 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

11

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FIGURE 236.—Distribution of Leucotrichia limpia Ross, "£; L. melleopicta Mosely, # ; L. viridis

Flint, | ; and L. gomezi, new species, J^.

1O

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FIGURE 237.—Distribution of Leucotrichia imitator, new species, -fa; L. chiriquiensis, new species,

# ; L. tubifex Flint, | ; and Costatrichia tripartita, new species, A-
NUMBER 60 57

IS

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FIGURE 238.—Distribution of Leucotrichia sarita Ross, •£; L. fairchUdi, new species, • ; and

Costatrichia spinifera, new species, • •

FIGURE 239.—Distribution of Leucotrichia pictipes (Banks), if; and Zumatrichia notosa

(Ross),«.
58 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

IS

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FIGURE 240.—Distribution of Costatrichia lodora Mosely, 'if; C. simplex, new species, # ; C.

bipartite, new species, • ; and C. panamensis Flint, J^.

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FIGURE 241.—Distribution of Anchitrichia spangleri, new genus, new species, ^f.
NUMBER 60 59

FIGURE 242.—Distribution of Zumatrichia multisetosa, new species, -^r; Z. antilliensis Flint,

Z. i>i«;a, new species, | ; and Z. angulata, new species, AJO

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FIGURE 243.—Distribution of Zumatrichia saluda, new species, -fa; Z. galtena Mosely, • ; Z.

echinata Flint, • ; and Z. strobilina, new species, J^.
60 SMITHSONIAN CONTRIBUTION TO ZOOLOGY

><> no IOS

FIGURE 244.—Distribution of Zumatrichia diamphidia, new species, if; Z. attenuata, new species,

# ; Z. chiriquiensis, new species, • ; and Z. anomaloptera Flint, A-

"» no ios too js

FIGURE 245.—Distribution of Zumatrichia bifida, new species, if; Z. palmara, new species,

Z. filosa Mosely, | ; and Alisotrichia orophila Flint, A-
NUMBER 60 61

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FIGURE 246.—Distribution of Zumatrichia caudifera, new species, ~fc; Z. teapa, new species,

Alisotrichia lobata Flint, • ; and A. argentilinea Flint, A-

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FIGURE 247.—Distribution of Zumatrichia rhamphoides, new species, it', Alisotrichia hirudopsis

Flint, • ; A. dominicensis Flint, • ; and A. chorra, new species, A-
62

SMITHSONIAN CONTRIBUTION TO ZOOLOGY

IOO «> »O •o n

FIGURE 248.—Distribution of Alisotrichia quemada, new species, if; A. wirthi Flint,

tamaza, new species, | ; and A. trifida, new species, AI S

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FIGURE 249.—Distribution of Alisotrichia blantoni, new species, -jfc; and 4. septempunctata

Flint, • .
Index

(Page numbers of principal accounts in boldface.)

Abtrichia, 2

Acostatrichia, 2

Agraylea, 2

Alisotrichia, 2, 3, 24, 30

argentilinea, 24, 25, 26 48, 51, 61

blantoni, 25, 28, 49, 62

chorra, 25, 27, 49, 61

dominicensis, 25, 29, 30, 50,61

hirudopsis, 24, 25, 26, 48, 51, 54, 61

lobata, 25, 27, 48, 61

orophila, 25, 27, 30, 48, 51, 60

qucmada, 25, 28, 49, 62

septempuctata, 25, 29, 50, 62

species 1, 25,30,51

species 2, 25, 30, 53

species 3, 24, 25, 30, 51

tamaza, 25, 28, 29, 49, 62

trifida, 25, 28, 29, 50, 62

wirthi, 25, 29, 30, 50, 62

Anchitrichia, 2, 3, 14, 16

spangleri, 14, 39, 55, 58

angulata, Zumatrichia, 16, 17, 21, 44, 59

anomaloptera, Zumatrichia, 16, 17, 22, 46, 60

antilliensis, Zumatrichia, 16, 17, 18, 36, 40, 53, 59

argentilinea, Alisotrichia, 24, 25, 26, 48, 51,61

attenuata, Zumatrichia, 16,17, 22, 45, 60

Betrichia, 2

bifida, Zumatrichia, 16, 17, 21,44, 60

bipartita, Costatrichia, 11,12,37, 58

blantoni, Alisotrichia, 25, 28, 49, 62

caudifera, Zumatrichia, 16, 17, 23, 46, 61

chiriquiensis, Leucotrichia, 4, 5,6, 32, 34,55, 56

chiriquiensis, Zumatrichia, 16, 17, 20, 42, 60

chorra, Alisotrichia, 25, 27,49, 61

Costatrichia, 2, 3, 11

bipartita, 11, 12, 37, 58

lodora, 11,12,13,37,58

panamensis, 11, 12, 37, 58

simplex, 11, 13, 38,58

spinifera, 11, 13, 38, 57

tripartita, 11, 13,38,56

diamphidia, Zumatrichia, 16,17, 21,44, 60

dominicensis, Alisotrichia, 25, 29, 30,50, 61

echinata, Zumatrichia, 16, 17,18, 40, 59

fairchildi, Leucotrichia, 4, 9, 10, 32, 57

filosa, Zumatrichia, 16,17, 23, 24, 46, 60

galtena, Zumatrichia, 16, 17, 19, 20,41,59

gomezi, Leucotrichia, 4, 5, 7, 52, 56

hirudopsis, Alisotrichia, 24, 25, 26,48, 51, 54, 61

Hydroptila, 2

Hydroptilinae, 2

imitator, Leucotrichia, 4, 5,8,9, 32,35,55, 56

Ithytrichia, 2

Lamongonotrichia, 2

Leucotrichia, 1, 2, 3, 11, 15, 16, 30

chiriquiensis, 4, 5,6, 32, 34, 55,56

fairchildi, 4, 9, 10, 32,57

gomezi, 4, 5, 7, 52, 56

imitator, 4, 5, 8, 9, 32, 35, 55, 56

limpia, 4, 5,6, 33, 36, 55,56

melleopicta, 3, 4, 5,6, 7,32, 33,56

pictipes, 4, 5, 8, 9,10,32, 35, 36,57

sarita, 4, 5, 8,9, 10, 32, 35, 36,57

tubifex, 4,5, 7, 34, 36, 55, 56

viridis, 4, 5, 6, 33, 56

Leucotrichinae, 2

limpia, Leucotrichia, 4,5,6, 33, 36,55, 56

lobata, Alisotrichia, 25, 27,48, 61

lodora, Costatrichia, 11,12,13, 37, 58

melleopicta, Leucotrichia, 3,4, 5,6, 7, 32, 33,56

multisetosa, Zumatrichia, 16, 17,40, 55,59

notosa, Zumatrichia, 16,17,20, 43,57

orophila, Alisotrichia, 25, 27, 30,48, 51, 60

Orthotrichia, 2

Orthotrichinae, 2

Oxyethira, 2

Paleagapetus, 2

palmara, Zumatrichia, 16,17, 22,45,60

panamensis, Costatrichia, 11, 12,37, 58

Peltopsyche, 2

pictipes, Leucotrichia, 4, 5, 8, 9,10,32, 35, 36, 57

Plethus, 2

Ptilocolepinae, 2

Ptilocolepus, 2

quemada, Alisotrichia, 25, 28,49,62

rhamphoides, Zumatrichia, 16, 17, 24,47,61

saluda, Zumatrichia, 16, 17,19,41,^9

sarita, Leucotrichia, 4, 5, 8,9,10, 32, 35, 36,57

septempunctata, Alisotrichia, 25, 29, 50,62

simplex, Costatrichia, 11, 13, 38, 58

spangleri, Anchitrichia, 14, 39, 55, 58

species 1, Alisotrichia, 25, 30, 51

species 2, Alisotrichia, 25, 30,53

species 3, Alisotrichia, 24, 25, 30,51

spinifera, Costatrichia, 11,13, 38, 57

Stactobia, 2

Stactobiella, 2

Stactobiinae, 2

strobilina, Zumatrichia, 16,17, 20,43, 59

63
64

tamaza, Alisotrichia, 25, 28, 29,49, 62

Tascobia, 2

teapa, Zumatrichia, 16, 17, 24,47, 61

trifida, Alisotrichia, 25, 28, 29,50,62

tripartita, Costatrichia, 11,13, 38, 56

tubifex, Leucotrichia, 4, 5, 7, 34, 36,55,56

vieja, Zumatrichia, 16, 17,19,42,59

viridis, Leucotrichia, 4, 5, 6, 33, 56

wirthi, Alisotrichia, 25, 29,30,50,62

Zumatrichia, 2, 3, 11, 14, 16

angulata, 16, 17,21,44,59

anomaloptera, 16, 17, 22,46, 60

antilliensis, 16, 17, 18, 36, 40, 53, 59

attenuata, 16,17, 22,45, 60

bifida, 16, 17,21,44,60

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY

Zumatrichia—Continued

caudifera, 16, 17,23,46,61

chiriquiensis, 16, 17, 20,42, 60

diamphidia, 16, 17, 21,44, 60

echinata, 16, 17, 18,40,59

filosa, 16, 17,23,24,46,60

galtena, 16, 17,19,20,41,59

multisetosa, 16, 17,40, 55, 59

notosa, 16, 17,20,43,57

palmara, 16, 17,22,45,60

rhamphoides, 16, 17, 24,47,61

saluda, 16, 17,19,41,59

strobilina, 16, 17,20,43,59

teapa, 16, 17,24,47,61

vieja, 16, 17, 19,42,59

US. GOVERNMENT PRINTING OFFICE: 1970 O—379-699


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