'+0

Reprinted from AnNlt s oF rHE ENtouoLocIcAL Soclnrv on AunnIca,
No. 3, September, 1935.
Vol. XXVIII,NEW SPECIES OF CRANE-FLIES FROM SOUTH
AMERICA. PART \I[I(Tipulidae: DiPtera):ffiff,'**::ixl"T;
The present paper is based almost solely upon extensive
series of crane-flies taken in BraziI and Paraguay by Mr.
Francisco Schade, and by Dr. John G. Myers in Venezuela
and on Mount Roraima in northern BraziL A few scatteredspecimenswere included in materials securedby Dr. Ogloblin
in Argentina and by Mr. Raymond C. Shannonin Peru. With
the exceptionof the latter material, all of the speciesdiscussedherewith are preservedin my collection through the continued
friendly interest of the entomologists mentioned.
Macromastix Osten Sacken
Macromastix(Macromastix)brasiliae sp.n.
with
Generalcolorationof notum brownishyellow,the praescutumdarkbyfour stripes of the ground-colorthat are further borderedbrown; mediotergite-with two large brownish black areas; antennae(male)'longer thin body, the vestiiure short and inconspicuous; wingl
yetto#istr 6to*tt, the costal border broadly. darker;- basal abdominal
yellow, the outer segments.passinginto black.
lergites"Mole--Length,
about 1:l mm.;wing, 1'1mm.; antenna, about 18 mm.
Frontal pt|lotrgation of head bro*nish- yellow, lined dorsally al+
Antennae (male)laterally *ittt brow:n; nasus stout; palpi darkbrown.
elongatL, exceeding the body; scape bnlarged, obscure_yellow; pedicely'"11o*; flaiellum black; fllgellar segments with short, ineoni-"fi,pndercenqg and tiny .verticils that are scarcely- longer
splcrlous pale'^pubeicence.
Ilead brownish yellow; vertical tubercle veryiii"r thelarge and conspicuous.
lContribution from the Entomological LaboratofY, Massachusetts State
College.
The preceding part under this general title \ilas published in The Annals of
the Entomological Societv of America, 24:. 622-642, 1931.
313

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Annals EntomologicalSocietyof America [Vol. XXVIII,

Mesonotal praescutum brownish yellow, with four areas of the
S1o111d-colorthat are conspicuously bordered by dark brown; an
additional capillary black median line extends backward from' thecephalic border of the sclerite for a short distance; scutal lobes brown,
variegated. by darker brown; scutellum dark brown; mediotergite
obscure yellow, with two large, oval, brownish black areas. Vestitureof mesonotum short and inconspicuous. Pleura obscure grayish
yellow, variegated by brownish clouded areas. Halteres dark 6rown,
the base of the stem restrictedly pale. Legs with the coxae brownish
EIaY, more or less variegated by brown; trochanters obscure yellow;
femora obscure yellow; tibiae obscure yellow, the tips narrowly darkbrown; tarsi black. Wings tinged with yellowish brown, the itigma,
costal and prearcular regions more infuscated to provide a dark anteriorborder; veins brownish black, Cu and ?nd A morc yellowish. Venation:
Scr. preserved; Rs subequal to Rr+,i Rs nearly straight; cell M r withpetiole shorter than m; cell ?nd A of moderate widtfi.
Basal abdominal tergites yellow, broadly margined laterally andmore narrowly on caudal margins with blackish, the ground-color
becoming_more obscured and restricted on the succeeding segments,on the fifth and remaining tergites uniformly blackened; sternites
more extensively vellow. Male hypopygium with the eighth sternite
large and sheathlike.

Habitat: Brazil. Ilolotype, d , Campo Bello, Minas Geraes,
September 26, 1930 (F. Schade).
Mocromastix brasiliae is very different from the other
Neotropical speciesof the genus. It is most generally similar
to M. paulseni Philippi, differing most evidently in the shortvestiture of the body and the relatively short antennae of themale sex.
Habromastix Skuse
Habromastix decoloratasp. n.
Generalcolorationof thorax brownishyellow, the praescutalstripes
slightly darker; nasus distinct; antennae(male) shorter than body;wings brownish yellow, the stigma slightly darker
Mole-Length, about 15-16mm.; wing, 14-15mm.; antenna,about
1 1 - 1 2m m .
Female-Length,about 16 mm.; wing, 14 mm.; antenna,about
2.8mm.
Frontal prolongationof head yellow; nasusdistinct; palpi chiefly
pale, the basal segmentand apical portion of terminal segment,infuscated. Antennae (male) l3-segmented,only a little shorter thanthe body; scape and pedicel yellow; flagellum dark biown; base of
first flagellar segment and incisures of succeedingthree segments
restrictedly pale; flagellar segmentselongate-cylindrical,ths basal
enlargementssmall; besidesthe usual basal verticils, the segments
rvith tr,voother elongatesetae,one beforeand one beyondmidlength1e35lAlexander: Sou,thAmerican Tipulidae

315of the segment, these verticils unilaterally affanged on the upper face;in addition to the verticils, the segments are clothed with a dense
erect pale pubescence; pedicel rvith a group of short black setae on
mesal face; terminal segment reduced. Antennae (female) shorter
than thorax. Head without vertical tubercle, light brown; anteriorvertex approximately twice as wide as diameter of scape at base.
Mesonotum light brownish yellow to faintly pruinose, the praescutum with scarcely indicated, slightly darker stripes; scutum somewhat more pruinose; scutelhlm paler testaceous brown; postnotum
brownish gtay. Pleura chiefly pale yellow, with a vague pruinosity.
Halteres relatively long, pale, the knobs infuscated. Legs with thecoxae and trochanters yellow; femora obscure yellow; tibiae and tarsi
passing into brown. Wings with a strong brownish yellow tinge,
cell Sc clearer yellow; stigma pale brown, only a trifle darker than the
ground; veins yellowish brown. \renation: Rs relatively short andstraight, & little longer than Rr+ri Rg relatively long; inner ends of cells
Re and Rs in transverse alignment; petiole of cell Mt shorter than nt,.
Abdominal tergites rvith the ground-color yellow, brightest on thebasal segments, more obscure outwardly; three brownish black tergal
stripes, the median one paler on basal segments,the lateral pair more
distinct; sternites more bicolorous, dark-colored, their apices conspicuously obscure yellow; subterminal segments uniformly black;hypopygium yellow. Ovipositor with the valves relatively short andfeshy, the cerci broadly compressed,the hypo'u'alvecvery small.
Habitat:Paraguay.

Ilolotype, & , Santa Barbara, October

2 & &.
17, Ig25 (F. Schade). .lllotopotype,? . Pttratopotypes,
I am referring this fly to llabromastix rather than to T'ipula,
despitethe presenceof a distinct nasus. The only other speciesof the genus so far describedfrom South America is fI. kmniscata Alexander, readily told by the handsomely patternedwings.
Tipula Linneus
Tipula paraguayensissp. 11.
General coloration of mesonotum opaque reddish brown, the praescutum with the meclianstripe polished; antennae short, l2-segmented,
the basal two segments yellow, the remainder brownish black; wings
with a strong brown tinge; macrotrichia of veins very scanty; cell
2nd A narrow; male hypopygium with the basistl'le produced caudad
into spinous points that are setiferous to their tips.
Male-Length, 10-11 rnm.; wing, 10.5-11.5mm.
Female-Length, about 10-11 mm.; wing, about 11-12 mm.
Frontal prolongation of heacl of moderate length, light brown,darker outwardly; nasus distinct; palpi brownish black. Antenneel2-segmented, unusually short in both sexes, being shorter than theentire head; scape and peclicet pale yellow; flagellum brownish black ;flagellar segmentsoval, gradually decreasingin size outwardly; terminrl

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Annals EntomologicolSocietyof America [Vol. XXVIII,

segment small; verticils of basal segmentsless than the segmentsin
length. Head light brown, the posterior vertex with a narrow brown
median vitta; r'ertical tubercle entire.
IVlesonotumopaque reddish brown, the median stripe polished.
Pleura opaque, pollinose, almost glabrous. Halteres yellow, theknobs dark brown. Legs with the coxae pale yellow, pollinose; trochanters yellow; femora obscureyellow, the tips narrowly blackened;
tibiae obscure yellow, the tips broadly brownish black; tarsi black;tibial spur formula I-2-2. Wings u'ith a strong brownish tinge, theprearcular and costal regions more yellowish; stigma strongly yellow,
the posterior portion more brownish yellow; outer radial field narrowly
infumed along margin; a narrow brown cloud on anterior cord; veinsbrown. Macrotrichia of veins very scanty, including a very restricted
serieson distal section of Rn+r;squama naked. Venation: Rs short,arcuated, shorter than Rr-rr; vein.Rs long and nearly straight, about
one-half to three-fourths longer than Rr+s;cell 2nd A very narrow.
Abdomen reddish brown, ir male with a conspicuousblack subterminal ring; hypopygium fulvous. N{ale hypopygium with a Ushaped median notch, the lateral lobes obtusely rounded. Basisty'le
produced caudad into a slender spinous point that is densely covered
with short setaeto apex. A singlecomplexdististyle; at apex strongly
bent into a long pale point; near base on outer face with a flattened
lobe, its apex obtusely rounded.
Habitat: Paraguay. Ilolotype, d , Villarica, October I1,
1925 (F. Schade). Allotopotype, g , A.tgust 16, 1924. ParatopotyPes,3 d d, 1 I , September 21, 1924-October 2+, l{125(F. Schade).
Tipula paraguoyensis is quite distinct from all other small
species of the'genus having the antennae l2-segmented. The
narrow cell ?nd A and the spinous basistyle of the male hypopygium serve to separate the fly from all other generall1'
similar forms.
Holorusia Loeu'
Holorusia ringens sp. n.
Close to leai.s:wings brownish, the costal region darker brown;a dark areaat midlength of cell M ; basesof cells R and M dark brown;
male hypopygium with the tergite lacking a median lobe; outer dististyle with a small lobelike flange at near midlength.
M ale-Length, about 12 mm. ; wing, 13 mm. ; antenna, about
3 . 7m m .
Frontal prolongationof head brown; palpi dark brown. Antennae
with basal flagellar segments weakly bicolorous, the apices of thesegments vaguely brownish yellou'; outer segrnentsuniformly darkbrown. Head brown, the posterior orbits narrowly pale, the medianregion of vertex narrowly blackened.
\,{esonotalpraescutunrreddish brorn'n,with feebly indicated darker

1e351

Alexander: SouthAmerican Tipulidae

317

stripes, best indicated by narrow darker margins to the stripes and bya capillary brown median vitta; scutellum and mediotergite testaceous
to brownish testaceous. Pleura brownish yellow. Halteres infuscated,
the knobs more strongly so. Legs with the coxae and trochantersobscure yellow; femora brownish yellow, the tips narrowly and weakly
infuscated; tibiae and tarsi darker brown. Wings brownish, thecostal. region darker bro,wn; bases of cells R and M, together with aconspicuousspot at midlength of cell M , darker brown; stigma darkbrown; narrow brown clouds at origin of Rs and on r/t-cu; more whitish
areas in cell M on either side of the dark spot; a tnangular pale area
ie outer end of cell ReI veins dark brown. A few macrotrichia on
vein.RB. Venation: Vein Ra gently arcuated, cell Rs being feebly
constricted at midlength; distal sectionof vein Rn+u only weakly sinuousat near midlength.
Abdominal tergites reddish brown, variegated by a broken dorsomedian brown vitta; subterminal segments uniformly blackened;hypopygium yellow. N{ale hypopygium with the tergite lacki_nga
median lobe, as is present in most other speciesof the genus. Outerdististyle long and slender, with a small, triangular, lobelike flange atnear midlength. Apical beak of inner dististyle very short and blunt.
Habitat: Paraguay. If obQpe, & , Villarica, December 22,
ltt24 (F. Schade).
This small species is allied and generally similar to llolorttsia
leais Alexander, differing especially in the hypopygial characters, notably the structure of the tergite and outer dististyle.
Holorusia tarda sp. n.
Antennal ffagellurn weakly bicolorous, the apices of the basal segments obscureyellow; femoral tips not darkened; wings with a brownish
tinge, the usual dark areain cell M nearly obsolete;male hypopygiumwith the outer dististyle bearing a lateral lobule beyond midlength.
M ule-Length, about 12-13 mm. ; wing, 1:J.5-l+ mm.; antenna,
about 5.5-5.8mm.
Frontal prolongation of head brorvnish vello\4'; nasus distinct; palpi
light brown. Antennae (male) a little less than one-half the entire
body; scapeand pedicel yellow: first flagellar segmentbrown, obscurely
yellow at both errds; succeedingsegmentsdark brown, with the apicalfourth or less vellow, the amount decreasingon the outer segments;
beyond the seventh segmentuniformly dark brown; flagellar segme.ntsrvith a slight basal enlargement. Head fulvous yellow, rvithout vertical
tubercle.
Mesonotal praescutum almost uniformly fulvous yellow, without
distinct stripesl interspaceswith setae almost lacking, there being a
few just before suture; posterior sclerites of mesonotum more bnIl'y,with abundant short vellorv setae. Pleura pale vellow, glabrous.
Halteres pale, the knobs infuscated. Legs with the coxae and trochanters yellow; remainder of legs obscure yellow, the terminal tarsal
segmentsa little darker. Wings with a brownish tinge, the prearcularand costal regions,together with stigma, slightly darker brown; a very

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Annals Entomolog'ical
Soc'ietyof America [Vol. XXVIII,

small, scarcely apparent dark cloud at near midlength of cell lut; nodarkened area in base of cell R; cells Mt and 2nd Mzwith an extensive
more nearly hyaline area; veins biown. Nlacrotrichia of veins almosd
lacking, elcept on R, R, "na Sc21R1. Venation: Cell R3only moderately
constricted at near midlength; cell l st fu[zsmall, irregularly hexagonai,
the two sections of. Ms'rr shortest; petiole of cell fuIt nearly twici m.
Abdominal tergites light brown, dark brown medially, except on
basal two segments;sublateral portions of tergites narrowly dark biornn 'subterminal segments ,t.rltor-iy brownish biack; hvpoptgi;;vai"*lI\{ale hypopygium with the suture between tergite and sternite o-bsolete
on cephalic half or less. Median lobe of tergite distinct, apices oflateral lobes with conspicuousspinous setae. Outer dististyle with alateral lobulebeyondmidlength. -spinesof inner dististyleshortand blunt.
Habitat: Paraguay. Ilolotype, &, Villarica, March 26
1926 (F. Schade). Paratopotype, d, February 16, Ig2O.
The present fly is allied to llolorusia leais Alexander, andcertain related species, differing in the great reduction of thedark area in cell M, together with hypopygial details.
Holorusia subtarda sp. n.
Close to tarda; antennae shorter, the individual segments about
trvo-thirds as long as in tarda; mesonotal praescutum olive bror,vn,
without evident stripes; abdominal tergites dark brown medially, moreyellowish laterally; male hypopygium rvith the outer dististvle elongate,
at about two-thirds the length slightly dilated and here provided with
abundant setae.
M ale-Length, about 13 mm. ; wing, 15 mm. ; antenna, about
4.4 mm.
Frontal prolongation of head yellow; basal segments of palpi pale
brown, the terminal segment yellorv. Antennae much shorter thanin tarda, the basal flagellar segmentsslightly less than two-thirds aslong as in that species;flagellar segmentsweakly bicolorous, r,vith alittle more than the basal half brown, the remainder ol-rscureyellow;
outer segmentsmore uniformll' darkened. Flead brown.
N'{esonotumolive brown, the praescutum without evident stripes;
posterior sclerites of mesonotum a little darker brown. Pleura yellow.
Halteres pale, the knobs infuscated. Legs with the coxae and trochanters pale yellow; remainder of legs obscureyellow, passing throughpale brown to brown, the tips of the individual segmentsnot darkened.
Wings almost as in tarda, the brown spot in cell M similarly small andindistinct, so the wing at first sight appears almost unicolorous.
Abdominal tergites broadly dark brown medially, pale yellow
laterally; basal sternites somewhat reddish brown, the subternrinal
segments blackened; hypopygium vellow. Compared with tarda, themale hypopygium shows the following differences: Median lobe of
tergite larger and more conspicuous;vestiture of lateral lobes replacedby short, blackened, spinous setae. Outer dististyle elongate, at about
two-thirds the length slightly dilated and here provided with abundant

1e35J

Alexander: South American Tipulidae

319

long dark-colored setae, but without a distinct lateral lobe. Blackened
spicules of inner dististyle much more numerous and covering a greater
atea.

Habitat: Paraguay. Ilolotype, d, Caraveni, SeptemberB,1925 (F. Schade).
The chief distinctions between the present fly and the very
similar If obrusia tarda sp. n. are indicated in the above
diagnosis.
Limonia

MeigenLimonia (Neolimnobia) immaculipes sp. n.
Allied to diaa; antennal ffagellum pale; fenrora obscure yellow,
without distinct dark annuli; wings yellowish, with a reticulate dark
pattern; male hypopygium with the rostral prolongation of the ventral
dististyle relatively long and slender, with three short spines at near
midlength; dorsal dististyle with the tip acute.
Mole-Length, about 7.5 mm.; wing, 9.2 mm.
Rostrum brownish black; palpi small, obscure dark brown, theterminal segment pale. Antennae rvith the scape and pedicel black;flagellum obscure 1'ellorv,the outer segments somewhat darker: basal
flagellar segments subglobular to short-or.al, the outer segments moreelongate, the verticils exceedingthe segments. Flead brorvnish black,the narrow anterior rrertex and the very nafforv posterior orbits )'ellorrish
gray.
Pronotum brown, medially above narrowly paie. Nlesonotal praescutum almost covered by three brown stripes that are strongly suffusedwith blackish before the suture, the surface of these stripes with asparsepollen; extreme lateral margin of sclerite brownish black, borderedinternally by chestnut-brown; scutal lobes obscure yellow, r'ariegatedby dark brown; scutellum light bror,vnish testaceous; mediotergite
blackened on cephalic half, more yellou'ish brorvn on posterior half.
Pleura yellow, with a black longitudinal stripe extending from the
propleura, across the ventral arrepisternum. pteropleurite and pleurotergite to the nrediotergite. as described; r'entral sternopleurite a little
darkened. Halteres yellow, the stem tinged with greenish. Legs
u-ith the coxae yellow, variegated ai near midlength with blackish;trochanters obscure yellow; femora vellou', vaguely to insensibly
darkened before the tips; remainder of legs obscure yellow, the terminal
tarsal segments narrowly darkened. Wings yellowish, with a muscosereticulate pattern of brown, as in the diaa group; veins brown, including
those of the cord and radial field, not light yellow as in diva. Venation:
Cell lst Mz subequal to or shorter than the veins beyond it; vein 2nd ^-lgently sinuous, the cell at outer end not so pointed as tn di,va.
Abdominal tergites obscure yellow, the sternites clearer yellcrv.
Male hypopygium with the rostral prolongation of the ventral dististyle relatively long, with three short stout spines that are closelygrouped at near midlength of the prolongation. I)orsal dististl'leacute at apex.

320

Annals EntomologicalSocietyof Arnerica [Vol. XXVIII,

Habitat: Brazil. Hol.otype, d , Campo Bello, Minas Geraes,
December 20, 1930 (F. Schade).
Limonia (IVeolirnnob'ia) immaculipes is closely allied to L.
(li.) diva (Schiner) and a group of closely allied forms, as
L. (I/.) muscosa (Enderlein) and L. (,n/.) tricincta (Alexander).
The almost immaculate legs of the present fly will readily
separate it from the species above listed.
Limonia (Neolimnobia) hpocrita sp. n.
General coloration gray; praescutum with the stripes poorly defined,
especially the lateral pair; fore femora with tips blackened, middle
and hind femora with a narrow, subterminal, brownish black ring;wings with a conspicuous, loosely reticulate, brown pattern; malehypopygium with the rostral spines short and stout, the outer a little
shorter.
M ale-Length, about 6.5 mm.; wing , 7.8 mm.
Female-Length, about 6.5 mm.; wing, 8.5 mm.
Rostrum and palpi black. Antennae with scape and pedicel black
the flagellum brownish biack; baial flagellai segments short-oval, th;outer segments more elongate-oval; terminal segment about one-third
longer than the penultimate. Head gray; anterior vertex at narrowest
point a little narrower than the diameter of scape.
N[esonotum Eray, the praescutum with stripes poorly indicated,
including a median pair that become confluent before the suture;lateral stripes obsolete or nearly so; scutellum and mediotergite clearer
silvery Eray, the latter with a median, dark brown vitta. Pleuragray. Halteres relatively short, dark brown, the base of stem lightyellow; in female, the stem more extensively pale. Legs with thecoxae darkened and pruinose basally, the apicei yellow; trochanters
vellow; femora yellow, the tips of the fore femora narrowly blackened;miaate and hind femora wit6 a narrower and less distinct subterminai
titrg; remainder of legs obscureyellorv, the tips of titriae arrd the outertarsal segments darkened. \\rings rvhitish subhyaline, rvith a conspicuous,loosely reticulate, brown pattern, including about six or sevendashesin cell C, with additional transverselines in all other cells excepting l st Mzi in the basal field, these areas in approximate alignment
across the wing-disk; veins brown, costa more yellowish. Venation:
Sct ending opposite origin of Rs; the supernumerary crossvein in cellRs at or beyond midlength of cell ; ?n-cut,
shortly before fork of. M.
Abdomen chiefly dark brown, the caudal margins of tergites very
narrowly pale. Nlale hypopygium n'ith the caudal margin of tergite
rvith a deep U-shaped notch. Rostral spines of ventral dististyleshort and stout, the outer about one-fourth shorter than the inner,
placed close together on basal half of prolongation. Gonapophyses
with the mesal-apicallobe strongly curved. Ovipositor with the cerci
short and slender; genital segment obscure yello'n', the hypovalvaedarkened basally.

1e351

Alexander: SouthAmerican Tipulidae

321

Habitat: Brazil. Holotype, &, Campo Bello, Minas Geraes,
October 27, 1930 (F. Schade). Allotopotype, I , October 12,
1930.
Limonia (IVeolimnobia) hypocrita is conspicuously different
from all other described members of the subgenusin the graycoloration of the head and thorax and in the pattern of thelegs. Despite the reticulate wing-pattern, it appears to be
somewhat closer to L. (.4i.) translucida (Alexander) than tomembers of the diaa group.
Limonia (Dicranomyia) mutata sp. n.
Belongs to the tristis group; general coloration gray, the praescutumwith a median brown stripe; halteres pale, the knobs infuscated; tibiae
and talsi black; wings whitish, without stigma; abdomen black, thehypopygium brightened; male hypopygium with the tergite transverse,
the caudal margin gently emarginate; rostral prolongation unblackened,
the spines arising close together.
M ale-Length, about 5.5 mm.; wing, 7 mm.
Female-Length, about 6.5 mm.; wing, 7 mm.
Rostrum dark gray; palpi black. Antennae black throughout;segments oval. Head gray.
flagellar-Mesonotum
gray, the praescutum with a median stripe that isslightly more brownish. Pleura dark gray. Halteres pale, the -knobs
infusciterl. Legs with the coxae and trochanters brown, the former
more pruinose; femora brownish black, the bases of the middle andhind pairs somewhat paler; tibiae and tarsi black. Wings whitish,
withclut stigma; axillary region weakly darkened; veins pale brown.
Venation: Scr ending opposite or just beyond origin of Rs, Scz close to
its tip; cell 1stMzlong,-subequalto or longer than vein Mt+t beyond it;
m-cu shortly before fork of.M.
Abdomen black, the hypopygium brightened. Male hypopygiumwith the tergite transverse, the caudal margin rveakly emarginate.
Basistvle with a single small lobule, additional to the ventromesal
lobe. Ventral dististl'le small, the rostral prolongation stout ; twospines placed close together a short distance back from the tip of the
prolongation; spines pale, subequal in length, without_ conspicuousbasal tubercles.- Dorial dististyle moderately curved, the tip acute.
Gonapophysesrvith the mesal-apical lobe blackened.

Habitat: Brazil. If olotype, &, near Mount Roraima,
sweeping in the savannah along the course of the ArabopoRiver, altitude near 3,500 feet, November 16, Ig:J2 (J. G.
Myers). AllotopotyPe,?. Paratopotypes,5d 9;Paratypes,
1 ? , slopesof Roraima, altitude about 6,000 feet, November
19, 1932; g , same slopes,altitude about 7,000feet, November
19, 1932 (J. G. Myers); Collector'sNos. 3213, 3218, 3227,
3216, 3251.

322

Annals EntomologicalSocietyof America [Vol. XXVIII,This distinct species was one of several that were taken
on and near Mount Roraima by my friend, Dr. John G. Myers.
The detailed notes on the botanical components of the ,r"iio,rtstations above mentioned wilt presumably be publishe.d indetail by Dr. Myers and will add materially to the descriptionsof novelties provided in this report . Limonia (Dicranimyia)
moilata is very different from L. (D.) knabi (Alexander) of
Mexico and Central America.
Helius St. F'argeau
Helius (Helius) myersiellus sp. n.
Mesonotum brown, the pleura black; antennae black, the basal
five flagellar segmentssnowr'-q'hite; femora yellowish brown, the tips
sSgqy white, subequal in n'idth to the simiiarly colored tibial bases.
tibial tipt- narrowlywhite; tarsi yellowish whitei *i"g;-&""-1r,varie]
gated with brown washes; male hypopygium with th'e median' regionof. tergite produced into ? quadrite haitened plate; outer distis"tylewith a conspicuous lateral spine on outer margin at near two-thiias
the length.
Male-Length, about 4 mm.; rving, -1..imm.
Rostrum black, not exceedingone-half the length of remainder of
1."4i palpi black. Antennae with scape and pedicel dark; basal five
ffagellar-segments snowy white, the remaining segmentspassing intobrown; longest verticils nearly twice the segmints. Head black.
Mesonotum of the tJpg crush4, chiefly dark yellowish brown,
contrasting with the black_pleura. Halteres with the stems blackened,
except at extreme bases; knobs broken. Legs rvith the coxae black.
trochanters dark brown; femora yellowish biown, before tiil-pa55ft
into black, the tips narroo.ly ancl Cbruptly snorvywhite;tibia6, "t b"r.r',snowy rvhite, be1'onc1n'hich point the segment is'narrowly
9gbe-quall-Y
blackened, soon paling to light brovi'n, tne outer end again narrowli
dark brown-,.with _t_b."
extreme tip equaily narro\\,l',, snon'-1,u,hite; tarii
yellowish white. Wings _withthe ground-color crei-y, cfiiefly suffusedwith brown, the ground-color pe-rsisting in the cosial field ancl as
extensive areas before an+ beyond stigma; central portion of d.isk,
along_vein M and the cord similarly of the ground-coior; stigma oval,
dark brou'n; slightly suffused brown areas at origin of Rs, oi anterior
cord and outer radial field; veins pale, a little darker in the clouded.
areas. Venation: Scr ending about opposite three-fourths the length
oj Rs-,Sczat tip- of *Scri !s long; basal section of Rn+r reduced; i-ru
shortly beyond fork of trf.
Abdomenl. including tlt" hypopygium,
black. Male hypopygium-proclucedwith the median region of tergite
into a quadrat" n"it6ned
plate, its margin truncate. Basisfyle with a slendbr lobe on mesal.facebeyond midlength. Outer dististyle fleshy, bearing a conspicuous
lateral-.spineon outer margin at near tvi'o-tiirds the length.' fnner
dististyle nruch shorter and iery slender,appearing as a simfle glabrous1e35lAlexander: SouthAmerican Tipulidae

323

rod. Interbase appearing as a slender, gently curved, simple rod, thetip obtuse.

Habitat: Brazil. Holotype, d . Stretch of bush withinsight of Mount Roraima, altitude about 3,000 feet; Maurukau
to Arabopo, November 15, 1932 (J. G. Myers); Collector's
No. 3205.
Helius (Helius) myersiellus is named in honor of the collector, Dr. John G. Myers, to whom I am greatly indebted
for invaluable cooperation in my studies on the Tipulidae
from many parts of the world. The present species is so
distinct from all other species that it requires no comparison
with any other so far made known.

Limnophila Macquart
Roraimomyia subgen. n.
Charactersas in Limnophila s.s. but rvith u'ings and halterestotallylacking.
Type of subgenus: Limnophila (Roraimomyia)permonstrotasp. n.

The group is undoubtedly close to Limnophila, the structureof the male hypopygium being much like that of Limnophilaroraima Alexander, likewise from Mount Roraima. The total
loss of both the wings and halteres marks the extreme tendency
in this direction in the Tipulidae, though approached by thegenus Alexandrella Tonnoir (Rec. Canterbury Mus., Christchurch, 3: 27-30, Pl. 3; 1926) of New Zealand, where bothwings and halteres are representedby rudiments.2 The present
fly is one of several unusually interesting Tipulidae taken by
Dr. Myers on Roraima. The only other previous records from"this " Lost World mountain are contained in a paper by thewriter (Amer. Mus. Novit., No. -tf)l: 1-6, Figs. 1-18; 1931).
Limnophila (Roraimomyia) permonstrata sp. n.
Without wings or halteres; general coloration brownish gray; legs
black.
M ale-Length, 3 mm.
Rostrum black, pruinose; palpi black. Antennae black throughout ;flagellar segmentsshort and crowded. Head black, sparsely pruinose;
anterior vertex relatively rvide.
Mesonotum flattened, entirely brownish gray. Distinctions between individual sclerites of mesonotum scarcely evident. Pleura
restricted in area, gray. Halteres and wings lacking. Legs with thezThe name AlexandrellaTonnoir being preoccupied, I take this opportunity
to proposethe new term , Tonnoirapteran. n., for the group in cluestion.

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Annals Entomological
soc,ietyof America [vol. xxvIII,

coxae elongate,black, sparselypruinose; remainder of legs black,
moderatelyhairy.
Abdonign-dark .sraY: Male hypopfgiu4 with the outer dististyleslightly bifid ?!- tip, the outer iurf;6 with long ;t;t;"1"
r.ib..
Aedeagusspiraliforrn,insidea broad-based
sheath."Habitat: Brazil. Holotype, d, Summit of Mount Roraima,
altitude about 8,500 feet, November 20, lg}2 (J. G. Myers).
Paratopotypes,3 & d; collector's No. 8269.
" Runningvery actively over the ground, in the lower
places, especially sandy spots near the lagoons. Not uncommor, but patchy in distribution.-J. G. Myers.,,
ShannonomyiaAlexander
Shatrnonomyia roraimensis sp. n.
General coloration of entire bopV dark brown or brownish black;antennae black throughout, flagellar segments short an6 crowdedj
front and narrow posterior orbits glay; wittgs with a strong brown
tjtg., !h.. stigma_and a vague cloudin['along" cord somewhaf darker;
Rs and its branches unusually glabroui; m-irt more than one-half its
length beyond fork of.M; cerci very slender.
Female-Length, about 7.J mm.; wing, 6 mm.
Rostrum and qalpi black. Antennie black throughout; flagellar
segments short, and crowded, the whole antennae only-aboul orrS-h"lflonger.than the head. Head dark gray, the broad.fronfand ,r.ryn"rto*posterior orbits silvery gray.
Prothorax and mesothorax dark
!1own, the surface slightly pollinose,
the plegra a trifle more pruinose. Halteres dusky. Le[s d;rk brown,
relatively stout. _Wingswith a strong brorvn tinge, the" stigma "rd "v?gue clouding along cord sonle\\/hat clarker; .'Jin. brown. \[acrotrichia of veins beyond cord unusuallv sparse, being lacking otr Rt
and its branches,exceptingthe distal seciion of R; u'here there ale about
55 distributed the entire length of the vein; on M with series on distal
ends of outer sections of veins ltrfr+, ancl M ei a few trichia near outerend of vein ?nd .4. Venation: Sc, ending at near three-fourths thelength o{ R9, Sc: not far from its tip-; Rg su6geual to R112,immediately
before the fork of ftr+, ; m-cu more than one-h-alfits length beyond thefork of trt.

Abdomen brorvnish black, the ovipositor with very slenclercerci
that are darkenedat bases,the tips hoin-colored.
Habitat: Brazil. tloloty.pe, g , Mount Roraima, summit,
altitude about 8,500 feet (D. Vesey-FitzGeral,c); Myers' No.
3308.
Shannonomy'ia roraimen,sisis very different from the otherregional speciesof the genus in the uniformly dark colorationof the body and appendages,the strongly suffuseclwings, andthe glabrousnessof the veins beyond the cord, which here is1e351

Alexander: SouthAmericanTipulidae

325

more marked than in any others of the more than a score of
Neotropical speciesof the genus. In its general appearance,
the present fly resemblesS. jaf,ueli Alexander, of Chile, Y€t
is very different in the features diagnosed.
Hexatoma Latreille
Hexatoma(Eriocera)roraimellasp. n.
Allied to kaietu,rensis;femora yellow, the tips narrowly and_-]:ery
weakly d.arkened; wings pale^levelbrorun, with indications of a P.ale,diffuse
of cord i mpcjotrichia of veins usuallyV"tto# band before t[ewith none on Rs or R,ri Rz at fork of R31a.
ipatse,^Male-Length, about 17 mm.; wing, 14 mm.
Rostrum dull orange; palpi dark brown. Antennae - with scapeorange; pedicel dull yJllo*; flagellum brownish b.l"*, !h. proximal
end. 5t't6. first segment paler. Head orange; vertical tubercle entire.
Mesonotal pra"escutum golden-yellow, with four more brownish
stripes, the inteimediate paiidivided by.^ narrow brown line; postelor
icf#tes of notum chiefly testaceous-ye1low,the scutal lobes somewhat
darker. Pleura brownish yeflow, the-dorsal pleurites darker. Haltereswith the stem pale yellow, ttt" knob brown.- L,egswith the coxae andtrochanters brorrnish yellow; femora yellow, the tips narrowly-and very
weakly darkenecl; ti6iae yellow, the -tipt . very narrowly darkened;tarsal segments one and two yellorv, th_gtips narrowly darker; outer
segmentJ more uniformly d,arkenecl. \\'ings- pa19 b^rorv1,with indicaband before level of cord; stigma oval,iiJ". of a pa1e,diffuse yeilot"ish-Macrotrichia
of veins unusually lparse, tfeSebrown; ,r.itts yellow.
being none or'Rr*r, Rs, R.r or Rz+q+lia scattered series of about eightot ttitt" trichia ott' dist"l section of Rr. Venation: Rz at fork of Rg+ri
Rr+,about one-half Rz+saa,irn;cu -iust beyond fork of M.
- 'Abdominal
tergites reddish, somewhat darker brown laterally;sternites more yellowish.
Brazil. Holotype, d, Slopes of Roraima, altiHabitat:
tude about 5,000 feet, November 1f), 1f):12,near small stream(savannah) edged u'ith coarse ferns (J. G. Nlyers).
The ,r"ur"rt ally of the present fly is l-Iexatoma (Eriocera)
kaieturensis (Alexander) which differs in the larger size, thedifferently colored femora with a distinct darkening at near
midlengtfi, and the venatic)n, with Rr eQual in length to R2..3. In

both oI these species, the trichia of the veins of the radial
field are unusually sparse.
Hexatoma (Eriocera)ogloblini sp. n.
Body anrl appendagesentirely deep black, with t4. gxgeptionl of
the light brown basalfl"agellarsegmentJ,and the abmptly bright yellow
wing-bases.
Itemale-Length,about 17 mm.; wing, 13 mm.

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AnnalsEntomologicalsocietyof America [vol. xxvIII,

Rostrumand palpi black. Antennaewith scapeand pedicelblack;slsmentsoneand twq, togetherwith base'ofth;;iirght b;;;ltg.tlqremarntngantennalsegm€nts
black; antennae(female)appaiently";ii7-segryented,
penultimate
segmenttwice as long "r'tfr. last andlttS
probably resulting.
from the fusion of tr,vo segmerits. Head, black.
inc.ludinglegg and halteres,entirEty antt, d."p black.
---. Thgr-oX,.
Wingsblack,with a conspicuous,
bright-yellorvband at base,-"s iir.l"EG
the entire prearcularreglol exceptin[tt'e extrem"U"r", *e1 as thevery narrowbasesof cell C and the Anal cells;this brighf coloris more
extensivealong the costal.border,thencecrossingttt8 wing o6iiq;;itto the axillary region;_Analcellsanclcentersof cE[s R and-R, atrieL
paler; veins black. Venation: Cell Mt lacking; r,ein gii .,qsinuous
on outer third.
Abdomen,includingovipositor,black.
Habitat: Argentina.. If olotype, g , Experiment Station,
Loreto, Misiones, April 18, 1g3z (A. oglobli"l. paratype, g,with the type; in the Bruch Collection.
This striking fly is named in honor of the collector, Dr.
Alejandro Ogloblin. I owe this material to the continued
friendlSrinterest of my old friend, Dr. Carlos Bruch. By my
k.y to the Neotropical speciesof.Eriocera (psyche, 2l: Ba4i;
1914), the present fly runs to nigra (Wiede-"trn) of Braztl.
I have seen the types of the lattei speciesand have found theyellow color at the wing-base,indicated in the original description, is so limited as to be barely evident. In the present
fly, this color is broad and very conipicuous. There is no otherdescribedEriocera closer to the present speciesthan nigra.
Ischnothrix Bigot
Ischnothrixbrevisectorsp. n.
General coloration d,ark brown, the mediotergite and pleura morepruinose; antennaeblack;-wings with a stron_gyEllowisl biown tinge,
the narrow stigma slightly dirker
FTg*tt; .t; short; nr-"Lty sfro?t,angulated at near midlength; Rs obliquei
abdominal sterniies .or.,lspicuousl_y
di_midiate,black. the incisurei broadly yellow.
Female-Length,about 8 mm.; wing, T.J mm.
Rostrum obscure)'e11ow;palpi bla&. Antennae rvith scaoe andpedicel.brownishblacli, the flagellirmblack;',.g-."tr !]""g;i;:
cylindrical, with short setaeana verticils. !g.Sell",
H&d gray.
Mesonotg- chieffy dark brown, very spa.rselydlsfed with a vellolvish gray po1len,the median region of praescutfim still d.rk"i ir;;;,;;
posterior scleritesof mesonotumsomer,vhat
clearer gray. Pleura <larkj
heavily gj"y pruinose. Halteres brownish yellori, ih. knobs darl.:brorvn. Leg! with the coxae brorvnish $ay; trochanters brownish
1'ellow;remainder of legs passingthrough Sroinn to black on the tarsi.
Wings rvith a strong yellowish blown tinge. the narrow stigma slightlrr

1e35lAlexander: SouthAmerican Tipulidae

327,darker brown; r,'eins dark brown. Venation: Sc short, Stl ending
just beyond origin of Rs, Scglying an equal distance before !hi9-origin;
Rr nety short for a member of this group, being about one-half.longer
than the basal section of fts, strongly angulated at near midlength;
Rr oblieue, approximately one-half the petiole of cell R3i veins issuingfrom ceil l st-Mz long ; m,-cuat or just before midlength of cell lst I'Iz.
Both wJnqs of -type ihow an adventitious (or possibly supernumerary)erossveln ln ceil Sc near outer end.
Abdominal tergites brownish black, the caudal margins of thesternites conspicuously dimidiate, black- "1dsegments narrowly pale;-formercolor occupving !h. central portion of theob"scureyellow. tie
segmenti, the latter the broad incisures. Ovipositor with the cerci
blackened basally, the tips reddish horn eolor; hypovalvae compressed,
yellow, narrowly darkened basallv.
Habitat:Yenezuela .

Ilolotype,I , Silla de Caracas, alti-

tude 1,900 meters, in cloud forest, December 21, 1930 (J. G.
Myers).
The only regional species of Ischnothrix is I. lloydi(Alexander) of Colombia (Andes, Santa Marta), which is very
distinct from the present fly in the venation of the radial field,
notably the short subtransverse Ra and the much shorter Ra.
The generally similar Chilean species I. ignithorax, Alexander
and f . mesoceraAlexander are very distinct in the elongate
Sc and Rs.
Teucholabis Osten Sacken
Teucholabis(Teucholabis)retusa sp. n.
General coloration black, including the antennae,legs and knobs
the.oval stigmapaie brown;of halteres;wings narrow, faintly grayish,-of the basistyle obtrrsely rounded,
male hypopygiunr rvith the lo6e
without spine.
Male-Length, about ll.5 mm.; rving,3.Sx 1.1mm.
Rostrum ana palpi black. Antennae black througlrout; flaggllar
segmentsoyal, the verticils long arrd conspicuous. Head opaquedarkgray.
anterior lateral pretergitestestaceous-yellow. I\{eso?ronotum an,C.
notum ancL pleura brownish blbck. Halteres obscure, th" knobs
infuscated. Legs black throughout, the segments.with Jotg erectsetae. Wings much narrower than in parish,iana,with a _faint.grayish
tinge; stigml oval, pale brown; veins dark brown. \renation: Rz
anclRr+r;last sectionof M 4z archedwhereit leaves
subLciualfb Rz+r+ncell Ist Mz; rn-cuat fork of M.
Abdomen, including hypopygium, black. Male hypopygium withthe lobe of basistyle ontusbly rounded, without an acute spine, as inparishiana. Outei dististyle unusually long and slender.

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AnnalsEntomologicalsocietyof America [vol. xxvIII,

Habitat: Peru. Ilolotype, &, Iquitos, March-April lg3l
(R. C. Shannon).
The nearestdescribedally of the presentfly is undoubtedly
Teucholabis(Teucholabis)parishiana Alexander, likewise from
Iquitos, which is readily told by the broader wings and different
structure of the hypopygium.
Gonomyia Meigen
Gonomyia(Lipophleps)schadeanasp. n.
. Belon8-sto the cinerea.group; rostrum black; thoracic pleura yellow,
with two brown lines; wilg! with stigma small but distinct; Sc short,ending_beforeorigin of R.sa distance greater than the length of the_.Sr:rlatter; m,ale hypopygium with the outer dististyle provideld rvith ablackened basal.spine; dorsal style a simple spine thit is about trvice
as long_as? similar spine on the-inner disiistyle.
Iutale--Length,about 8.5 rnm.; rving, 8.8 mm.
f)escribed fronr an alcoholic soecimen.
Rostrum and_pal.piblack. Antennae rvith scapeand pedicel yellow,"
clarkenedbeneath; flagellurn pale brovun,the veriicils elongate. Headyellow, the center of the vertex extensir-elyinfuscated.
Pronotum yellow., lined with brovvn on lateral portion. Laterul
pretergites P-ale yellow. Mesonotum dark brown, the praescutummargined with paler brown; scutal lobes dark brown, the median area
1'ellow with a further median brown dash; scutellum infuscated, margined caudally with 1 ellorv; mediotergite dark brou,n, \'ariegated with
obscure vellow at near midlength. Pleura I'ellcu'. with trvo narro\\r,
dark brown, longitudinal stripes, the moie yerrtral one broader.
Halteres yellow, !h. knobs rveaklf infuscated. Legs with the coxae
pale, the apex of fore coxa and base of midcoxa dariiened.:trochanters
yellow; remainder of legs broken. Wings with a yellowish tinge, thebasal portions slightly more infuscated; costal regibn yellowish-white.
stigma small, 9.'?T,darker brorvn; " r."icelf i"al.Ited dark seam along
cord; veins qale brown,_m_oreyellowish in the basal and costal portions-.
Yenation: Sct-ending before origin of .l?sa clistance slightly greaterthan the lengt-h of the latter; fts less than one-half thelenltd of its
anterior branch
Abdominal tergites dark brown. the caudal margins of the intermediate segments paler. _ I\{ale hypopygium with thl outer dististylebearing a blackened basal spine that is more than one-thir,Cthe len[thof. the paddlelike outer arm of the style, the latter further provided
yitlt a single small spine in the axil. Inner style a hemiiphericalfleshy mas.s,,prolonged caudally into a strong, thornlike spine^that isabout one-half longer than the basal spine of the outer dististyle. f)orsal
style -a slender_,simple spine, currred at base, about twice the length of
the thorn of the inner dististrrle.
Habitat : Paraguay.

If olotype, alcoholic & , Villarica, 1g:l l(F. Schade,through Dr. G. C. Crampton).

1e351

Alexander: South American Tipulidae

329

I take great pleasure in naming this fly in honor of myfriend, Mr. FranciscoSchade. The speciesis allied to Gonornyia(Lipophleps) cquispinosa Alexander (Paraguay), differing in
the darker wing-stigma, shorter Sc and in the details of themale hypopygium. In @quispinosa,the spines of the dorsal
dististyle and the inner style are both small and subequal insize,while the outer dististyle is a simple, elongate, unarmed
blade.
Trentepohlia Bigot
roraimicolasp. n.
Trentepohlia(Paramongoma)
General coloration of thorax light brown; antennae black throughout; legs brown, the tarsi slightly paler; wings with a dusky tinge,
restrictedly patterned with darker brorvn, including the stigma and aseam at origin of Rs; vein ^[t3uflltsually erect, so cell Rr is longer than rn'ide
at costa;cell lst Mzelongate,the basalsection of.M.31ongand arcuated.
M ale,-Length, about 6.5 mm.; wing, 7.5 mm.
Rostrum dark brown; palpi black. Antennae black throughout;flagellar segmentsoval to subcl'lindrical, with iuconspicuousverticils.
pruinose; anterior t'ertcx naTTow.
Head dark brorvn, sparsely
N{esonotum and pleura alnrost unif'orml}' light brown, the dorsopleural region a littl-e darker. Halteres dirty white. L"g. wlth theboxae light brown; trochanters testaceous;remainder of legs brown,
Wings with a dusky tinge, the stigma and a
the tarsi slightly paler.
seam at orifin of Rs darker brorvn; narro\\'er and less evident clouds
along cord ancl on vein m; r'eirrsbron'tr. \Iacrotrichia of veins very
sparse,bevond cord u,ith rr restricted serieson vein R, ro * M tt, andon the distal section of Rr*u. \renation: ^Scrending shortly before
Re,the latter at fork of R3aai Reunusually erect, longer than the distanceon costa betweenveins R,+, and R3f vein R. long-extended;cell lsl'Mz
elongate,the upper face (vein Rn+, + Ilt t+r) longer than Rr+r+r; basal
section of IIs elongate, arcuated, about one-third longer than rn-cxt,.
Abdominal tergites brorvn, the sternites obscure vellorv, the outersternites with the caudal borders n'eakl)' dlrrkenecl.
Habitat: Brazil. Ilolotype, &, Mount Roraima, summit,
altitude about fl,irtX) feet (D. Vesey-FitzGerald); Myers' No.

3307.
Trentepoh,I'ia(Paramongoma) rorai'micola is abundantly
distinct from all other speciesin Tropical America, the mostconspicuous features being the combination of unvariegatedlegs, slightly patterned rn'ings,and the venation, especiallythe
erect vein ,Raand the elongate cell l st ll[r.

330

Annals EntomologicalSocietyof America [Vol. XXWII,Cryptolabis Osten Sacken
Cryptolabis (Cr5rytolabis)schadeisp. n.

Mesonolum-brown, th9 praelcutum lined with blackish, including
median and sublateral stripes of this color; antennal flag.tt.t- chiefli
obscure.yellow:halterespale yellow; legs yellow. the tipr?r ih; f.;;;;
Sttd tibiae, and all of tarsi eicepting pto*imal ends o? basid;ri;;;;[
brown; wings tinged with grayish yellorv,
the linear stigmal r""- u"a'cellsan axillary area brown; rnacrbtrichia ofabunclanil;nr "tottg"t",in alignment_withR, , Rz longer than Rrir.
Fentale-Length,about 4 mm.; wing, b mm.
Rostrum ot]d palpi brown. Antennae rvith scape and pedicel
dar:k bror,vn, the flagellum obscure yellow; flagellar^segments subcylindrical to somewhat oval, with iong "onrpi.uous vliticils tfrat
exceedthe segmentsin length. Head pite brorvnish testaceous.
Pronotum and lateral pretergites yellowish white. M.ronoturn
lloytt, the praescutum witfi a narrow blackish median line and lessdistinct sublatet?l stripes of the same color, the latter crossing ttre
suture onto the lateral margins of the scutai lobes; centers of Jcutal
lobes brown; posterior sclerites of mesonotum infuscated. Pleura
chiefly blactened, !!re dorsopleuralregion testaceous,the ventral sternopl.gytilespaling.to light_test-aceous
br6wn. Halterespale yellow. Legs
with the coxaebrownishtestaceous;trochantersyellow; f6mora yellow,
the-tips narrowly_dark brorvn; tibiae obscureyeliow,' the tip, 1-r"rrowly
da.rkened;tarsi darl< brgyn, the proximal end of basitaisus yello#.
Wings tinged with grayish yellorv, the prearcular and costal i"gio"tcle.arer-yellow i an elongate stigmai seam-anrl an axillary atea biown;
veins brownish -yello_w: N{aciotrichia of cells numerous, .rp".iutiy
pgyotta the cord and in outer ends of cells C'r!, lst ^l and Znct -1.
venation: Rs elong-?te,sinuouson distai half i R,roblique,a little longer
than ftr+-r;Rs in direct alignment n'ith R;; cell trfr' deep, its petiile
shorter than tn-cu.
Abdomenbron'n, the ovipositorpaler.
Habitat: Brazrl. Ilolotype, ? , Campo Bello, Minas Geraes,
Octobet 5, 1930 (F. Schade).
Cryptolabis (Cryptolabis) schade,i,is named in honor of thecollector. It is most nearly allied to species such as C. (C.)
chilota Alexander and C. (C.) spatulata ^Llexanderin the elongate
Rs in perfect alignment with vein Rs, differing from all described species in the pattern of the thorax, legs and wings.
Toxorhina Loew
Toxorhina (Toxorhina) mendosa sp. n.
Generalcoloration btffy brown, the praescutumwith three, narrow,dark brown.stripes; halterespale yellow; legs yellow, the tips of th6
tibiae conspicuouslyblackened;m-alehypopygium with the^basistyle1e351

Alexander: SouthAmerican T'ipulidae

331

produced at apex on mesal face into a flattened, dark-colored lobe;
arrns of aedeagusshort, obtuse.
M ale-Length, excluding rostrum, about 7 mm.; wing, 5.J-rmm;
rostrum, 4.2 mm.
Rostrum elongate, dark brown. Antennae black throughout.
Head brownish gray.
Pronotum black. IVlesonotalpraescutum buffy brown, with three,nalTow, dark brown stripes; scutal lobes conspicuously marked withbrown; posterior sclerites of nlesonotum more pruinose. Pleura brown,
the dorsal sclerites darker, the ventral sternopleurite a little darker
than the dorsal portion. Halteres pale yellow. Legs with the coxae
dusky basally, more yellowish at tips; trochanters yellow; femora
obscureyellow; tibiae obscureyellow, the tips conspicuouslyblackened;tarsi pale brown, the outer segments blackened. W'ings subhyaline;
axillary region weakly darkened; veins dark brown, the prearcularregion and veins Sc and R more yellowish. Venation: Scr ending
opposite origin of Rs; m-cucbefore fork of M .
Abdomen brownish yellow, the caudal and sublateral portions of
the .segmentsrestrictedly -darkengd; pgt-er-segments,includitg hypopygium, more uniformly darkened. Male hypopygium with the apex
of basistyle on mesal face produced into a flattened, dark-colored lobe,
much as in fragil,is. Dististyle much as in fragil'is, the base terminating in two blunt blackened spinulose points, the rostral blade
flattened and bearing a conspicuoustoothed flangenear base. Aedeagus
with the arrns short, obtuse.

Habitat: Brazil. Holotype, &, Campo Bello, Minas Geraes,
January 16, 1931 (F. Schade).
Toxorhina (Toxorhina) rnendosa is most nearly allied toT. Q.) fragilis Loew (Greater Antilles) in the general coloration
and blackened tips of the tibiae, differing in the structure of
the male hypopygium, especially the details of the dististyleand the obtuse arms of the aedeaguS,in fragilis these being
longer, lyriform, with each arm drawn out into an acute point.