DEC., 1941]

ALEXANDER:

345

CRANE-FLIESRECORDS AND DESCRIPTIONS OF NEOTROPICALCRANE-FLIES(TIPULIDIE, DIPTERA), XIIIBY CHARLES P. ALEXANDERAMHERST,MASSACHUSETTS

The preceding part under this general title was published in
1941

June,

(JOURNAL OF THE NEW YORK ENTOMOLOGICALSOCIETY,

49: 139-148). The species considered herewith were taken at andnear Potrerillos, "The Valley of the Clouds," in Chiriqui, northern Panama,
and J. W. MacSwain,
toby Messrs. D. V. Brown
whom I am indebted for this rich material.
All types are preserved inmy personal collection of these flies.
Genus

Limonia

Meigen(Limonia) vorax new species.
Belongs to the apicata group; antennae (male) elongate, conspicuously
nodulose, the flagellar segments heart-shaped, with long apical necks; wings
strongly tinged with brown, the oval stigma darker brown; male hypopygiumwith the lobes on mesal face of basistyle small; dististyle complex, strongly
constricted before the beak which is split into three distinct lobes; apicalcrest of dististyle with a comb of about fifteen teeth; gonapophysis with
Limonia

lobe

mesal-apical

stout

2.8-3

and broad.

about 4.8-5 mm.;

MALE.-Length

5-5.5 mm.;wing

antenna

about

mm.

FEMALE.-Length about 6.5 mm.; wing 6 mm.
Rostrum and palpi black. Antenna brownish black, in male elongate
and conspicuously nodulose; flagellar segments dilated, cordiform, with longonnecks;

apicalglabrous

the

outer

the

segments

bases

are

somewhatnarrower but still expanded; terminal segment elongate; flagellar segments
withprovided
ously nodulose.

a dense

white

Head

dark

Mesonotal

prsescutum

brown,
expandeddarkenedbehind;is moreuniformlyInfemale,antennalessconspicu

the median
area
dark
yellow
laterally,
lobes dark brown;
scutellum
palebasally,
In some specimens
darkened.
the mesonotum
mediotergite
Pleurabrown
testaceous
throughout.
yellow,extensively
behind;withvariegatedof stem yellow,

theobscureyellow;remainder

the oval

stigmadistancedarkera shortpubescence.
brown.

dark

brownishscutalbrown,
remainder

beforethe ventral
darkbrown.

sclerites
Legs

Halterespaler.
withcoxse and

with

base

trochantersof legs brown.
Wings
tinged withstronglybrown,
Sc long, Sc1 endingveins brown.
Venation:brown;
the fork of Rs, Sc, at its tip; m-cu
close to fork of M.

JOURNAL NEW

346

YORK

ENTOMOLOGICALSOCIETY[VOL. XLIX

Abdominal tergites dark brown, sternites obscure yellow, the lateral
portions darker; hypopygium dark. Male hypopygium with the caudal
margin of the ninth tergite broadly emarginate medially, the surface with
abundantcoarsesetae.

on mesal

Basistyle

face

with

two

small

relatively

lobes provided with long setae; near apex of basistyle a further setiferous
lobe. Dististyle complex, the main body a globular setiferous lobe, the outerwithmargina combofabout

15 teeth;the usualbeak

is set off byportionaconstriction, at apex the beak split into three distinct lobes.
Gonapophysis with mesal-apical lobe unusually stout and broad, obtuse.
2Edeagus narrow at apex.

markedHolotype, A, Potrerillos, altitude 3,500 feet, May 2, 1934
(Brown). Allotopotype, S. Paratopotypes, 6 3?, altitude 3,000
feet,May 14-25, 1935 (MacSwain); 1 3,with the type (Brown).
Limoniavorax(Limonia)

is very

distinctfromdethe otherscribedmembers of the apicata group, especially in the elongate
antennae

noduloseof the maleandof the malein the structure

hypopygium. The latter somewhat suggests L. (L.) rapax (Alexof Peru

ander)

is not particularly

the resemblancebutclose.

Limonia(Limonia) sica new species.
Belongs to the apicata group; general coloration of praescutum obscureyellow with a broad black median stripe; flagellar segments with glabrous
apical necks; wings with cell 1st Mf short-quadrate; male hypopygium withthe dististyle single, extended into a slender dagger-like blackened beak.
5 mm.;

about

MALE.-Length

6 mm.;

wing

antenna

1.7 mm.

about

Rostrum and palpi black. Antennae black throughout, relatively long, as
shown

by

the measurements;

glabrous
conspicuousthan the penultimate.
brownishPronotumobscureyellow;

flagellar

apicalHeada broadblack.

necks;

oval
segments
terminal
segment

blackish,Mesonotal

median

black

to

with

subcylindrical,
about
one-half

longersparselypruinose.
withthepraescutum
widenedbehind;stripe,color

groundscutallobes

infuscated, themedian area yellow; scutellum brownish yellow to pale brown;
mediotergite testaceous yellow, more darkened behind. Pleura obscure yellow, the mesopleura extensively more darkened but not forming a distinct
stripe; pleurotergite pale. Halteres with stem yellow, knob brown. Legs
with

coxa

darker.

pale

Wings

remainder
yellow;a pale brownwithveins dark brown. Venation:
the
of

of

legs medium

tinge;

stigmathebrown,
a little

oval,

femoraa trifledarkerbrown;

Sc long, Sc ending about opposite four-fifthsof Bs, Sc, at its tip; cell 1st M,
lengthshort-quadrate,
close to fork of M.
the veins beyond
it; m-cushorterthan

any

Abdominal tergites dark brown; sternites obscure yellow; hypopygium
more brownish yellow. Male hypopygium with the tergite relatively exten
sive,

the

caudalmarginwitha conspicuous

V-shaped

notch;

lobes

providedDEC., 1941]

ALEXANDER:

347

CRANE-FLIES

with long coarse seta. Basistyles slender, the ventro-mesal lobe long andconspicuous, pale, the proximal portion glabrous, the outer end conspicuously
hairy; mesal face of style -at near midlength further produced into a very
low protuberance. A single dististyle, relatively narrow, on outer face ofbase with a small oval lobe, the outer portion of style extended into a slender
dagger-like blackened beak, the tip acute. Gonapophysis with mesal-apicallobe relatively stout, simple, blackened.

Holotype, d, Potrerillos, altitude 3,000 feet, May 15, 1935
(MacSwain).
from all other mem
Limonia
sica is quite distinct(Limonia)of the male hypopygium
bers of the apicata group, the structure
being very different from the most nearly allied forms, as L. (L.)

acuminata (Alexander).
Limonia(Limonia) trialbocincta new species.
Belongs to the insularis group; antennae with scape light yellow, the remaining segments black; front wide, silvery white; mesonotum brownish
black, with a conspicuous white median longitudinal stripe; legs black, thefemoral and tibial tips, together with a ring on tarsi, snowy white; wings
with a strong blackish tinge, restrictedly patterned with darker brown; abdominal tergites and hypopygium black, sternites dark, the caudal bordersof the individual segments pale; male hypopygium with the rostral pro
longation of the ventral dististyle long and slender; gonapophysis withthelobe broad,mesal-apicaltip obtuse.

MALE.-Length about 6.5 mm.; wing 8-8.2 mm.
FEMALE.-Length about 7 mm.; wing 8.5 mm.
andRostrum
antennae

black;

to elongate;
about

with
Antennae
scape light yellow,
palpi black.
basal
segments
flagellar
subglobular,passing

flagellar segments with short apical necks;

one-third

thanlongerthe

Frontpenultimate.

remainderofthroughovalterminal segment

andvertexanteriorwide, silvery white; posterior portions of head dark brown.
Pronotumdarkbrown.

Mesonotal

sublaterally, the lateral margins
black;
spicuousposterior
white

of

sclerites
longitudinalprsescutum

notum

brownishstripebeginscontinued caudad onto the mediotergite;
on ventral

portion.

Pleuraobscure

light

in

brown

front

and

and extensive posterior portions brownish
a narrow
black;
near
anterior
end

con

but

very

of

prescutum

pleurotergite brownish black, paler

yellowishbrown

to brown,

sparselyvarie

gated. Halteres black, the extreme base of stem yellow. Legs with thefore coxa dark brown, the remaining coxse a little paler; trochanters brown
ish yellow; femora black, the tips narrowly but abruptly snowy white, theamountsubequalon alllegsofsegment;

tibis

black,

thewhite,

andtheinvolvingextremeabout

the distal

tenth

bases

whitened,thetotwelfthtips

broadly

the amount about twice as extensive as the femoral tips; basitarsi

JOURNALNEW YORK ENTOMOLOGICALSOCIETY

348

[VOL.
XLIX

black, the extreme tips and remainder of tarsi with the exception of theouter segments snowy white. Wings with a strong blackish tinge, the costal
andborderouterradiala little

field

narrow

darker;

but

still

darkerseams

at origin of Rs, stigma, cord and outer end of cell 1st M2; veins dark brown.
Venation: Sc ending about opposite three-fifths to two-thirds Rs; R2 long;m-cu close to fork of M. In the paratype, an adventitious crossvein in cell
RB of one wing only.
Abdominal tergites and hypopygium black; sternites dark brown, thecaudal borders of the segments pale. Male hypopygium with the caudal
margin of tergite gently emarginate. Rostral prolongation of ventral dististyle long and slender, pale, gently arcuated, the oval sensory area close to
extreme tip. Spinule of outer dististyle small and relatively sparse. Gona
pophyses pale, the mesal-apical lobe broad with the tip obtuse.

Holotype, S, Potrerillos, altitude 3,000 feet,May 20, 1935 (Mac
Swain). Allotopotype, ?, May 25, 1935. Paratopotype, 1 A, withthe type.
Limonia (Limonia) trialbocincta is readily told from L. (L.)
praeclara Alexander and other generally similar species by theabruptly whitened femoral tips, additional to the white rings on
the tibia

and tarsi.

Limonia(Dicranomyia) aurantiothorax new species.
General coloration of thorax light orange yellow, unmarked; halteres andlegs yellow, the terminal tarsal segments infuscated; ovipositor with cerci
short.
FEMALE.-Length about 5-5.5 mm.; wing 6-6.2 mm.
Rostrum relatively long, pendant, obscure yellow; palpi pale. Antenne
with scape yellow; pedicel and flagellum pale brown to brownish yellow;
flagellar segments subglobular to short-oval, the outer segments smaller.
Head yellow.
Thorax uniform light orange yellow. Halteres yellow. Legs yellow, theterminal tarsal segments infuscated. Wings light yellow, without markings;
veins yellow. Venation: Sce ending opposite origin of Rs; cell 1st M, closed;
m-cu

shortly

before

fork

of M;

cell 2nd

A narrow.

Abdomen blackened, the color possibly caused by discoloration resulting
from included eggs, the caudal borders of the individual segments pale. In
of

the

to

small

basal

cerci

short,

subequal

the caudal

a paratype,stricting

the

dark

segment

lightyellow;borderscolor

revery extensively
pale,
with
the genital
Ovipositor
in length
to the hypovalvie.

tergites
areas.

are

Holotype, $, Potrerillos, altitude 3,000 feet, May 5, 1935 (Mac
Swain).
Paratopotypes,
Limonia(Dicranomyia)

2 99, May

5-Juneaurantiothorax

2, 1935 (MacSwain).
is readily told by theDEC.,1941]

349

ALEXANDER:CRANE-FLIES

orange yellow coloration of the thorax, in conjunction with theunmarkedyellowandwings

the short cerci.

(Geranomyia) carunculata new species.
General coloration greenish testaceous, the prsescutum with a broad cinna
mon-brown median stripe; femora obscure yellow, the tips broadly clear
yellow, preceded by a much narrower brown subterminal ring; wings yellow
with a heavy brown pattern, including a darker and more extensive costal
series, the area at origin of Rs and fork of Sc single or only slightly sepa
rated; Sc relatively short, Sc ending about opposite one-third to one-fourth
the length of Rs; male hypopygium with the caudal margin of tergite con
vexly rounded; rostral prolongation of ventral dististyle with two long curved
spines arising from the outer angle of a raised sclerotized plate; gonapo
physes with mesal-apical lobe long and slender, nearly straight or but gently
curved.
MALE.-Length, excluding rostrum, about 5.2-5.5 mm.; wing 6.2-6.5 mm.;
Limoniarostrum

3-3.2

about

mm.

FEMALE.-Length, excluding rostrum, about 6.5-7 mm.; wing 7-7.5 mm.;rostrumabout

3.2-3.5mm.

Rostrum black throughout, elongate, as shown by the measurements; palpi
black. Antennae black throughout; flagellar segments passing through sub
globular, oval to elongate. Head behind gray, with conspicuous brownsetigerous punctures, the narrow anterior vertex more silvery.
Pronotum yellow above, darkened laterally. Mesonotal prsescutum with abroad cinnamon-brown median stripe, the lateral portions broadly more
greenish testaceous; posterior sclerites of notum greenish testaceous, thescutal lobes chiefly brown. Pleura pale greenish testaceous. Halteres pale,
the

knobs

ceous;
much

darkened.

femoraobscurenarrower

brown

with

Legs

yellow,
subterminal

and

coxs

the
the

tips

broadlyring;

trochanters
clear

tibiasandbrownish yellow, the terminal tarsal segments darkened. Wings
costalandmore

portions
follows:

prearcularasFivearrangedpattern,of Is and fork of Sc,
one at origin
end of cell
cord and outerareas;
marginal

darkacloudson veins

small

marginal
spicuous;in the clouded
darkeryellow,
one-third
ing about
oppositefork

saturatedyellow,with

to 2nd A

inclusive,

the

last

of

cell

to one-fourththeyellow, thea heavybrown
third a common

costaltheareas,
largerin cases barely
disconnected
1st M,
seamed withbrown;

at midlength
darkeningareas.
Sc
Venation:

Ms

testa

greenishyellowprecededby aof tarsi
basal
segments

intoaseparate
seriesoflarge and con
veins
2nd A;

relativelyof Rs;
lengthshort,
m-cu

ofsegments

end

Sc
close

to

of M.

Abdominal

tergiteslightbrown,

the caudal

borders

sternites more uniformly yellow; hypopygium yellow;
men

more

of

ninth

uniformly
tergitepale
convexly

brown.
rounded.

thepaler;in female, the abdowiththe caudal margin
hypopygiumarod.
curvedDorsaldististylegentlyMale

Ventral dististyle large and fleshy, the rostral prolongation slender; rostral

NEW YORK ENTOMOLOGICALJOURNAL
SOCIETY

350

[VOL.
XLIX

spines two, long and curved, arising close together but separately from the
outer

an

of

angle

elevatedsclerotizedplate.

with

Gonapophysis

mesal

apical lobe long and slender, nearly straight to very gently curved, the tip
weakly expanded.

Holotype, J, Potrerillos, altitude 3,000 feet, May 5, 1935 (Mac
Swain). Allotopotype, O, altitude 3,500 feet, May 12, 1934
(Brown). Paratopotypes, 2 6J, 2 H?, with the allotype, May
12-14, 1934 (Brown).
Limonia (Geranomyia) carunculata is closest to L. (G.) eury
gramma Alexander and L. (G.) deliciosa Alexander, differingfrom all described species in the structure of the male hypopygium. The unusually extensive yellow femoral tips, in con
junction with the pattern of thewings and praescutum, is likewise
somewhat distinctive.
Limonia(Geranomyia) fluxa new species.
General coloration grey, the preescutum with three narrow brownish black
stripes; halteres with dark brown knobs; femora brown, the tips narrowly
yellow; wings with a weak brown tinge, the prearcular and costal portions
more whitish; stigma oval, darker brown; outer radial field weakly infumated; Sc short, Sc ending about opposite origin of Rs; male hypopygium with the rostral spines arising from a low common tubercle; gona
pophyses with the blackened mesal-apical lobe irregularly bilobed.
MALE.-Length, excluding rostrum, about 5 mm.; wing 5.5 mm.; rostrum
3 mm.

about

FEMALE.-Length,
trum

about

excluding rostrum, about 6 mm.; wing 6.5 mm.;

ros

3 mm.

Rostrum black, elongate, in male exceeding one-half the length of body;
palpi black. Antennae black throughout; flagellar segments subcylindrical.
Headbrownishblack,

theanterior

andvertexa median

stripeonposteriorvertex light gray.
Pronotumblackishbrownishblack.

with
three
gray,
the lateralborders

stripes,

Mesonotal

narrowofbutscleritepraescutum

cated; posterior interspaces more reddish gray;
mesal
tion

of

traversed
portionby a brownish
the sublateralprsescutal
stripes;scutellum
nose.
teres

vaguelyyellow;
to yellow;

foveteinfus

scutal lobes brown, their
the direct

prolonga
gray;black,

sparselyslightlywithpaler.
the forepruiHaltibiaeandmediandarkened;thebrown,
tarsi

pale

area

caudalpostnotum
paler;
the propleurapruinose,knobdark brown.
Legsevidently
femoraobscure

line,

black

lighterthe midcoxse

paling

black

color

groundbrownishscutumborder

less

the

of

the posterior
dark,
Pleurablack,
sparsely
stem palewithyellow,

blackened,trochanterswithdefinedclearly
the pseudosuturalvery
behindposterior
tips

coxe

narrowly
thebrown,

coxse

light yellow;
and somewhat
terminal

tarsalDEC.,1941]

351

ALEXANDER:CRANE-FLIES

segments darker. Wings with a weak brown tinge, the prearcular and costal
portions more whitened; stigma oval, darker brown; wing tip in outer radial
field somewhat infumated; veins brownish black. Venation: Sc short, Sc,
ending opposite origin of Rs or approximately so, Sca at its tip; m-cu at
fork

of M.

Abdominal tergites brownish black, sternites obscure brownish yellow, thesubterminal segments darker. Male hypopygium with the caudal marginof ninth tergite shallowly emarginate medially. Ventral dististyle much
more extensive than the basistyle, the rostral prolongation moderately long,its apex obtusely rounded; rostral spines two, of moderate length, gently
curved, from a low common tubercle near base of prolongation. Gonapoph
yses with mesal-apical lobe darkened, short and irregularly bilobed, theouter lobe or point longer and more conspicuous than the more obtuse lateral
tooth or flange.

Holotype, A, Potrerillos, altitude 3,000 feet, May 14, 1935
(MacSwain). Allotopotype, 0, May 5, 1935 (MacSwain).
Limonia (Geranomyia) fluxa ismost similar to L. (G.) nigri
pleura (Alexander) and allies, differing in the coloration of thewings and legs, and especially in the structure of themale hypopygium.
Osten Sacken
Genus Elephantomyia
luteiannulata chiriquiensis new sub(Elephantomyia)
Elephantomyia
species.
FEMALE.-Length, excluding rostrum, about 7.5 mm.; wing 7 mm.; ros
trum

about

As

in

6 mm.

than

to or moretheextensive

Alexander,
femoralYellowdetails.

colorational
broaderluteiannulata

typical

black
than

of
rings

in the typicaltips;
the yellow
rings.

southernmuch

Mexico,wider,
the black

form,
Dark
abdominal

indiffering
one-half

being
tips

are

rings

wide

equal
and

conspicuous, occupying from one-fourth to nearly one-third the length of thesegment.

Holotype, $, Potrerillos, altitude 3,000 feet, May 25, 1935
(MacSwain).

Genus Teucholabis Osten Sacken
Teucholabis
General(Teucholabis)coloration

stripesreaching
prsescutalnotum
black;
pleurachiefly
conspicuously
tips of femora
withtwo narrow
yellow,brownishdominaltergites

aequinigra new species.
and

black

lateraluniformly
yellow;
pronotumyellow;of sclerite;
and post
lateral marginscutellum
knob of halterestheblack;
yellow;legs yellow,

theon all legs; wings
the amountsubequal
black,
the wingabbrowncrossbands,
tip palerbrown;
withthe poste
sternites
black,
brown,
dimidiate,

352

JOURNAL NEW

YORKENTOMOLOGICAL[VOL. XLIXSOCIETYrior borders yellow; male hypopygium with the spine of basistyle long, pro
vided with numerous long silken setEe; outer dististyle long and slender,
bearing a small lateral spine at near midlength; sedeagus narrow, directly
produced caudad into a black spine.
MALE.-Length about 6.5 mm.; wing 6.5 mm.
FEMALE.-Length about 6 mm.; wing 5.5 mm.
Rostrum black, a little shorter than remainder of head; palpi black. An
tennae black throughout; flagellar segments oval. Head in front polished
black, the posterior vertex and occiput paling to obscure yellow.
Pronotum yellow. Mesonotal preescutum with the ground color yellow,
with three extensive polished black stripes that are narrowly separated by
the interspaces; lateral stripes extensive, including the broad lateral marginsof the prEescutum and crossing the suture onto the scutal lobes; medianregion of scutum very narrowly pale; scutellum black, the parascutella paler;postnotum black, the suture between pleurotergite and mediotergite paler.
Propleura yellow; mesopleura black, the dorsopleural region surrounding the
root

wing

and

the meral

regionwith

Halterespaler.

stemknob

dusky,

light yellow. Legs with coxe and trochanters yellow; femora light yellow,
the tips rather narrowly but conspicuously black, the amount subequal on
all legs and including the distal sixth to eighth of the segment; tibiae obscureyellow, the tips more narrowly brownish black; basal tarsal segments obscureyellow, the outer tarsal segments passing into black. Wings yellow, theincludingextendeda narrow

cloud

at

outer

indicatedbya deeper

M;

best

ened,

costala little
regions
narrowbands

andprearcularbrown
pattern,cord, the former

more

of

at

level

a somewhat
yellow;of originof Rs andsparseat thein cell

basad

end

clearer

Cu and vaguely
at veinbroken
1st Mi;dark
wing
tip very weaklyof the veins.
Sc relatively
Venation:

cell

color

long, Sc extending approximately to opposite midlength of Rs, Sc, shortly
cell R, at margin
moreof the latter;the origin
B, slightly
oblique;beyondfork of M.
than cell R4; m-cu
than one-half
moreextensive
shortlybeyondbrownishsternites
black;
tergites
the segments
yellow;hypopygium

Abdominal
half

caudalofgreatly reduced. Male hypopygium withat base,long silken

curvedous

dark brown,thedimidiate,
Sternalblack.
setae of malespine of basistyleof basistyle
andblackenedmesal
margina slenderOuterrod, a little
flange.
dististyle
pale
with
at near midlength
on mesal marginof basistyle;
apex

of
the

into

style narrowed
two spinous

pointsoutermostincision,
lobe near

the
base

of outerdirectlycaudad

into

being
lobe.

a gentlya curved

hooklikea weakthan
the spine
longera stronglateralspine;

a point.
Inner
dististylethus widely
separated

relatively?Edeagus
curved blackspine.

intoelevated

denticles;

gate,

long, strongly

with
numer
spine that is provided
apex a long straighta few microscopic
at base of spine withsetae; on outer margin
the

outer

with
by

blade;
narrow,

lobe

elon

a broadU-shapedasmall

cylindricalthe apex

produced

Holotype, J, Potrerillos, altitude 3,000 feet, May 20, 1935
(MacSwain). Allotopotype, ?, May 7, 1935.

DEC.,1941]

353

ALEXANDER:CRANE-FLIESTeucholabis (Teucholabis) oequinigra is very distinct fromother Neotropicalsackeni Alexander,yet

is apparently
closest to T. (T.)
in the coloration
distinctof body,Itspecies.
very

legs and wings, and in the structure of themale hypopygium.
Teucholabis(Teucholabis) seposita new species.
coloration
black and yellow; head dull black; knobs of halteres
Generalthe femoral bases narrowly yellow; wings whitish
black,
weakly yellow; legs
subhyaline, unmarked except for the small brown stigma; cell 1st M2 open
by atrophy of basal section of Ms; male hypopygium with mesal face of outerdististyle bearing a slender basal spine, with a stronger spinous arm beyond
midlength.
MALE.-Length about 9 mm.; wing 7.5 mm.
FEMALE.-Length about 9-10 mm.; wing 7 mm.
Rostrum nearly as long as remainder of head, black; palpi black. An
tennae black throughout; flagellar segments oval to subcylindrical, with long
verticils. Head dull black.
Pronotum obscure yellow, darker medially and in front. Mesonotal
praescutum obscure yellow, with three confluent polished black stripes that
leave

broad

areas

beforethesuture;lateralsutureandincluding

the

of

the

in

groundthepraescutallateralhalf

humeralstripesof eachandlateralcaudadscutalthe broad

lobe,

and

portions
acrosscontinued

themedianregion of the scutum yellow; scutellum dull black, the extreme posterior bor
der more reddish brown, parascutella more reddish brown; mediotergite
black.

polished

Pleuratheblack,

more

pleurotergite

reddishtobrownpiceous; a broad, more silvery, longitudinal stripe extending from behind theto the base

fore

coxe

more

yellow.

more

reddish;of abdomen.

with
Legs
trochanterstheHalteresandfore

femorabrown;

middlethe apex
black,
coxse black;black,

yellow; remainder of legs black. Wings whitish
cept
veins

for

the

small,

yellow.
of Rs,
the lengthveins R,
R2+3+4;
pale

brown

open
than

longerAbdomenby atrophy
its petiole;
black,

theslightly
coxse
obscurenarrowly

subhyaline, unmarked ex

stigma;Sc

virtually their entire lengths, cell R2 at margin
1st M2posterior

Sc and the prearcularveinsbrown,
about opposite
three-fifths
long, Sce endingfromsome distanceits tip; BR a little
thanlongerto one anotherforR5 extending
generallyparalleldark

Venation:Sc,andthe basesof knobof basal

sectionm-cu

a shortincisuresofof M,;

distancethesternites

thus being very wide;cellbeyond2nd M,
fork

broadly

about

cell

one-halfof M.
yellow,

of

the

ter

gites more narrowly so; in the female, the yellow pattern less contrasted;hypopygium black. Male hypopygium with the apex of basistyle obtuse.
Outer
seta,
mesal

rod provided
of a curved
dististylecomplex,consisting
on mesala sharpface withnear basemorespine;
arma stronger
chitinizedthatis bifid
face, withwithcoarselong

distally,
at apex.

also

lobe withshort and compact,
the outerconspicuous
dististylesetae, thenear apex produced
at apex.
lobe or beak irregularly
bilobed2Edeagusa powerful curved spine.

on

Inner
inner
into

JOURNAL NEW

354

YORK ENTOMOLOGICALSOCIETY[VOL. XLIX

Holotype, A, Potrerillos, altitude 3,500 feet, May 12, 1934
(Brown). Allotopotype, 9, altitude 3,000 feet,May 5, 1935 (Mac
Swain). Paratopotype, 2 9', May 5-14, 1935 (MacSwain).
Among the now relatively numerous Neotropical species ofwith

Teucholabis

open, the present fly iswings, as well as
legs and unpatterned

cell 1st M2 of the wings

in the blackvery distinct

in the very different structure of the male hypopygium.
Genus

Gonomyia

MeigenGonomyia (Lipophleps) peracuta conifera new subspecies.
MALE.-Length about 3.5-4 mm.; wing 3.6-4 mm.
Differs from the typical form in the details of structure of the male hypopygium. Lateral spines of basistyle shorter, stouter at base and morestrongly incurved. Dististyle with conical spine shorter and more slender,a

only

littlelonger

than

two

the

setae atfasciculate

apex

of

style.

Holotype, J, Potrerillos, altitude 3,000 feet, May 7, 1935 (Mac
Swain). Paratopotypes, 1 c3,May 5, 1935; 1 J, altitude 1,000
8, 1934

feet, February;paratype,(Brown)1 J, Finca

de Parada,

altitude 4,450 feet, September 12, 1932 (W.K. A. Lawlor).
Genus Erioptera Meigen
Erioptera (Empeda) sutrina new species.
General coloration dark brown; rostrum yellow; antennae black; legs
brown; wings grayish, the stigma scarcely indicated; Sc, ending shortly
before midlength of Rs; R2 shorter than R2+3+4; male hypopygium with theouter dististyle blackened, bifid, the inner arm irregularly lobed, bidentate
at

inner

apex;

MALE.-Length

dististyleaboutpale and narrow.
3 mm.;
3.3 mm.
wing

Rostrum obscure yellow; palpi brownish black. Antennae of moderate
length, black. Head dark brownish gray, the front paling to brown.
Pronotumcaudalborderdark

brown.

ofscutellum

Mesonotum
narrowly

very

almostuniform

dark

pale;

lateralpretergites

brown,
and

the
bor

ders of praescutum pale. Pleura brown, the dorsopleural region darker.
Halteres dusky, the base of stem yellow. Legs with the coxse pale brownish
yellow;
lineartrochantersscales,testaceous;toin addition

remainderofsetae.

Wings

the

legs

brown;
grayish,abundant
legs withthe prearcularandcostal portions a little more yellow; stigma scarcely indicated; veins brown.
Venation: Sc1 ending shortly before midlength of the long, nearly straight
Rs,

the

lattersubequal

to veing,; R2

shorterthan

R2+s+,;

veins

BR andR, generally parallel to one another on their basal portion, thence diverging
so cell RB at margin

is widerthancell BR; m-cu

close

to forkof M.

DEC.,1941]

355

ALEXANDER:CRANE-FLIES

Abdomen brownish black, the hypopygium slightly paler. Male hypopygium with the outer dististyle blackened, bifid, the outer arm simple, longer,a little
apex

expanded

inner arm irregular,
the tip subacute;
third,
a low marginal
tooth;
flange back from the outertheon outerwithbidentate,

innermargin of style at near midlength produced into a flattened, roughly trian
gular point. Inner dististyle a narrow, parallel-sided blade, the apex ob
tusely rounded. Gonapophyses with blades very broad and flattened.

Holotype, J, Potrerillos, altitude 3,000 feet, June 2, 1935
(MacSwain).
Erioptera(Empeda)ous Neotropical
speciessutrina is quite distinct from the numer
Asof the subgenus so far made known.

usual in the genus, the structures of themale hypopygium furnish
the chief distinguishing characters.
Genus Molophilus Curtis(Molophilus) illectus new species.
Belongs to the plagiatus group; size small (wing 4 mm. or less); generalcoloration dark gray; antenne short, the scape black, the flagellum lightbrown; halteres dusky; wings with a weak brown tinge; R, in transversealignment with r-m; male hypopygium with the basal dististyle long andslender, gently curved from the slightly dilated base, the mesal edge with afringe of long setee and inconspicuous low spines; phallosomic plate narrow.

Molophilus

aboutMALE.-Length

3 mm.;wing

3.7 mm.;antenna

1.2 mm.

about

FEMALE.-Length about 3.8 mm.; wing 4 mm.
Rostrum

andlightflagellum
tenneerelatively

palpi

black.

brown;

inshort,

if

Antennaewith(male)

antennae
female,bent
backward

scape

more

uniformlyaboutattaining

black,

andpedicelandarkened;
the wing-root;

flagellar segments long-oval. Head gray.
Thorax almost uniformly dark gray, variegated by the restricted white
anterior
Halteres
Wings

lateralpretergites;
the base ofdusky,
witha weakbrown

vestitureof mesonotum

stem

restrictedly
the base
tinge,

longbrightened.
and costal

andconspicuous.
dark brown.

Legsregionalittlemore

yellow; stigmal region more infumated but ill-delimited; veins pale brown.
withR2 in transverse
r-m; petiolealignmentvein 2nd A sinuous.
the oblique m-cu;
a trifle brighter.
the sternites
brownish
Abdomenblack,
Outer
decurved.
withthe apical beak of basistyleslender,

Venation:ofcell M,

about

twice

Male

hypopygium
with
the

dististyle

on basal
half.
more
Basal
arm
dilatedinner
dististyleslender,base moremesal
curvedrod, the extreme
dilated;slender,gentlyacurved
low
of
with
with
very
long
interspersed
setee,
fringe
style
setae
face

from
shortlybeyondextendinga few scatteredof style withterminating

in a small

spine.

basespinesPhallosomic

a
edge

long,
of

the
teeth,
to apex;outerand spinousof style
setse;
apex
the apex
plateunusually
narrow,ofstyle

virtually

356

JOURNAL NEW

YORKENTOMOLOGICALSOCIETY

obtusely rounded, subtended on either side by a pale
2Edeagus stout.

[VOL. XLIX

setiferous

lobe.

Holotype, J<, Potrerillos, altitude 3,000 feet, June 21, 1935
(MacSwain). Allotopotype, O, June 19, 1935 (MacSwain).
Molophilus (Molophilus) illectus is closest toM. (M.) pennatus
Alexander,of Mexico,differing

especiallythe coloration of the body and wings.
is somewhat

similarin the small size and in

The hypopygial structurein the two species but

the details

are distinct.

In pennatus, the stouter basal dististyle is enlarged and straighton about the basal fourth, thence gently curved, the mesal facewith long black spines additional to the long setae, these spines
very different in appearance from those in the present fly.