Elttt ffto Amllrs AITDMrolznru or NerunEr. TTrsToBy,,
Ser. lQ vol. xx. p. 481, Nwember lgg7.

New or little-lntownTipulid n (Diptera).-Lrrr. Neotropient
ph.D., F.R.b.s.,
species: By cru,nr,EsP. Ar,nxaNDER,
Massachusettsstate college, Amherst, Massachusetts,
U.S.A.
THn crane-fliesdiscussedat this time were chiefly collected.
in the oriente of Ecuador!LMr. William clarke-l{acintyre,and in Rio Grande do sul, Brazil, by Mr. Fritz plaumu.rr.
One additional speciesof unusual interest w&s taken in
Dutch Guiana. by my go_odlriencl Dr. John G. Myers.
f expressmy sincereindebtednessto all the above foi theprivilege of retaining the types in my collection of theseflies.
BrachypremnaarcuariA, sp. n.
Size small (winglessthan tB mm.); thoracic pleura conspicuously-variggatea
with obscureyellow and d'arkbrown;
femora and tilire_black,the genua v-erynarrowly whitenedj
tarsi yellowish brown ; wings strongly dartened., th;stigma oval, darker brown, preceded and foliowedby conspicuous yellowish-white areas; outer cells of
rving without pale droplets ; Bs short and very strongly
arcuated at origin ; !-m very short or entirely obuteraieh
by upproximation of adjoining veins ; cell zrld L red.uced
to a linear strip.
Male.-Le_ngth lbout l0 mm. ; wing ll.b mm.
Femnle.-Length about 1l mm. ; wing l2.b mrn.

482

Dr. C. P. Alexander oru

Frontal prolongation of head narrowly testaceousyellow aboie, including nasus, the sides blackened;yellow,;
falpi brownish black. Antennre with -scap_e
dark
iredicel brownish yellow ; flagellum black. Headbrown.
Mesonotumalmost uniformly dark brown, the medianarea of scutum Yery restrictedly and vaguely paleryellow andPleura conspicuouslyvariegated with obscure_d.ark brownl the general.colorationbeing dark, with palg
areas on dorsal and ventral sternopleurite, on ventral
and on dorsal meron. Halteres with st'em
pteropleurite,^ob*.,itu
yellow, knob dark brown. Legs_with t'he forecox& yeliow, d.arkenedon basal half ; mid-coxmobsclre
yellow ; posteriorcox& dark brown ; trochantersyellon' ;irmot" and tibire black, the genua very restrictetlly(about0.2-0'3mm.) snowywhite, involvingequalamoutlts
on both femoraand tibire ; tarsi somewhatpaler, yellorvish
brown, but not conspicuouslybrightened. Wings rvith
the ground-colour strongly darkened, tfre stigma oval.
d,ark6r brown, preceded and followed by extensive
yellowish-whiteaieas; except for thesebrightenedareas.
,ih" wing-disk is almost uniform in colour, without pale
tlropletJin the outer cells as in other species; post'gri.or
prei,rcular field. whitened ; veins brown, the tipq of- theiuter med.ialveins pale. Venation : -Esunusually shortand,very strongly arcuated,the basal portion-bgittgerector even-slightlyiecurved and more than otre-halfas lo^g
as the longitridinal distal portion ; r-?n obliterated or
reduced to a mere point, by approximation of veins
Ro*uand Mr*r; petiole of cell M., .approximatelytwo'
ttrirds as long as vein M z; cell Znd'A very narrow.
Abdominaf brgites blick, very restrictedly variegatedespecially 3,t-th,ewith yellow at basesof the segments_,
laterai margins ; sternites yellorv, each rvith broad dark
triangles, t--he point directed cephalad, t4" subbasal
sbrrrltes more uniformly darkened; hypopygium dark.
Hab. Ecuador (Oriente).
Hototypa,3, Abitagua, Rio Pastaza,altitude 3250feet,?.
Novem6er6, 1936(Macintyre). Allotopotypte,
The presentfly is most closelyrelated t'o Brachypremna
cand,idaAlexander (Guiana-Brazil), differing from thisand.all other speciesby the colorationof the legsanclu'ings.

newor little-knownTipulidre.

483

The brevity and grea,tarcuationof fis, togetherwith thealmost uniformly darkened wings, furnish important
specificcharacters.
Tanyprernncc(Pehlkea)pallitarsis, sp. n.
General coloration of notum brown, the prrescutum
darker laterally and in front ; front and anterior vertex
yellow ; apex of frontal prolongationand nasusdarkened;
pleura yellow, with two transverse brownish-black
girdles; femora and tibire black, with about the basal
tenth of the latter abruptly white ; all tarsi yellowish
rvhite ; rvingstinged rvith brown, with broad darker brown
seamson cord and along the supernumerarycross-veinin cell M.
Male.-Length about 20-23mm. ; wing 17-18.5mm.
Frontal prolongation of head yellow ; the apex andnasus brownish black ; palpi black. Antennre short ;scape and pedicel yellow ; flagellum dark brown 'Ragettarr.g-ents cylindrical, rvith-short verticils. Froni
ancl anterior vertex light yellow ; posterior portion ofheadrich brown, darker behind.
Pronotum brorvn. Mesonotal prrescuturn with thelateral and humeral portions, as rvell as the cephalicendof the meclianprrescutalstripe, darli brorvn,the rernaiuderof disk, including both stripcs and interspaces,a little
paler, rnore reclclishbrou-n; posterior scleritesof notum
dark brou'n, the mediarr arett,of scuturn and most ofscutellum paler ; mediotergite rnore reddish brown
medially. Pleura yellou.,variegatedrvith two transverse
brownish-blackgirdles,the anterior onenarrow, extendittgfrom the pronotun, acrossthe propleura,to and includ.ing
the fore coxre; posterior girdle wide, extending from theprrescutalmargin oppositeand beforethe suture, includitg
the pteropleurite and mid-coxrc; anepisternum,sternopleurite, and pleurotergite remaining of the pale groundcolour. Halteres obscure yellow, the knobs darkened.
Legs with the fore and middle coxre dark, as described;
posterior coxrepale ; trochanters yellow ; femora black,the extreme bases obscure yellow ; tibire black, with
about the basal tenth abruptly white, with weak greenish
tinges ; tarsi of all legs uniformly pale yellowish white.
Wings with a brownishtinge, cellsC and 8c more yellowish
31*

484

Dr. C. P. Alexandetonbrown ; broad, conspicuous,darker brown seamsincluding
cord, outer end of cell lsl M r, and the supernumerarycross-veinin cell M ; stigma dark brown ; longitudinalveinsbeyondcord morenarrowly and lessevidently seamedwith brown ; veins pale brown, a trifle brighter in the
costal portions. Venation: Br+, strongly arcuated,narrowing cell nr on its outer portion ; supernumerarycross-veinin cell M transverseor only slightly oblique.
Abdominal tergites inconspicuouslybicolorous,yellow,
darkened sublaterally and at, apices; sternites more
uniformly yellow, the subterminal segments brownish
black ; eighth sternite chiefly pale.
Hab. Ecuador (Oriente).
Holotype,6, Abitagua, Rio Pastaza,altitude 3250feet,
October 1936(Macintyre). Paratopotypes,
2 63, October
1936; November6, I936.
The present fly is most closelyallied to the type of thesubgenus,Tanyprerw?rr(Pehlkea)columbiana(Enderlein),differing most evidently in the uniformly rvhitened tarsiof all the legs.
Previously I had not considered Pehllcea as being
sufficiently distinct from Tanyprernna Osten-Sackento
be maintainedas a valid genusor subgenus. Except forthe supernumerarycross-veinin cell M of the lvings, thevenation is very similar to that of the genotype of Tanyprernna, opilio Osten-Sacken. However, no fewer than
three specieshaving this characterare now known, and it
is evidently a constant one. The subgentsPehlkeamay
be added to the four recently consideredby the present
writer (Rev.ChilenaHist. Nat. xl. pp. 298-305(1936)),andthe variousgroupsmay be separatedby the accompanying
key :l. Wings with vein Rr* rlacking ; antonna
with basal t'wo or throo flagellar segmonts strorqgly produced on lower
face to appear subpectinato
Wings with voin Rr*, prosent; antonna with flagellar sogmonts simplo,
cylindrical . .
2, A supormrmora,ry voin in various collsof wing
No supernumerery voins on wing. . . . .
3. A supornumorary voin between Rn*u,and the anterior branch of M, forming
a socond discal coll abovo tho normal
lst M,

Tanyprernnod,esAloxander.
2.
3.
4.

Ceoneura Aloxandor.

neu or little-lcnownTipulidre.

485

A supornumorary cross-voin in eoll M . . Pehlkea Endorlein.
4. Coll lst M r large, widoned outwardly ;cell M, sessile
Ald,rouand,ioEnderlein.
Cell lsl M rof rnodoratesizo,not strongly
widened outwardly ; cell .M/, petiol a t o. . . . . . . . . . .
........
Tanypnernn&Osten-Sacken.

The subgenotypesof thesegroups are 'Tanypremnode,sAlexander, 1924; type, leucoplacaAlexander.
Ceoneura.llexander, 1924; type, idioneura ^Llexander.
PehlkeaBnderlein, I9L2; type, columbianaEnderlein.
Ald,roaand,iaEnderlein, LgIz; type, gesneriEnderlein.
Ta,,nypren'tna
Osten-Saclcen,1886; type, opilio OstenSacken.
Xenotipuln cisatlantica,sp. ll.
General coloration grey, the prrcscutum with darkbrown stripes, the intermediate pair confluent in front ;frontal prolongation of head elongate, without nasus;
palpi short ; antenn& ll-segmented ; wings brownish
yellow, cellsA and Bc conspicuouslydark brown ; stigma
clear bright yellorv ; veins beyond cord virtually without
trichia ; Scr weakly preservecl,Bc, ending about opposite
the fork of frs ; Rr*s preserved; cell M L lacking ;abdominal tergites dark brown, the lateral borderspale.
Female.-Length about 14 mm. ; wing 12.2mm.
Frontal prolongation of head elongate,without nasus,
ferruginous above, darker beneath; palpi black, terminal
segment short, subequal to the third. Antennre l lsegmented; scape and pedicel yellow, flagellum black ;flagellar segments subcylindrical or weakly dilated incentral portion ; outer two segrrrentsrnore slender andelongate. Head with the a,nterior vertex clear ashygrey, the posterior vertex ancl occiput u'eakly infumed ;vertical tubercle entire, lorv.
Pronotum grey, infuscateclnrcdially. Mesonotalprrescutum with the ground-colourobscureyellow, the interspacesin front and olt the sides more pruinose ; four
dark brown stripes, the intermediate pafu confluent on
cephalic half, narrowly separated befbre the suture ;scutum brownish grey, each lobe with the central portion
extensively darker brown ; scutellum and postnotum
brown, heavily pruinose. Pleura light grey, the ventral
sternopleurite a little darker. Halteres pale brownish

486

Dr. C. P. Alexandetonyellow, the knobs dark brown. Legs with the coxrcgrey ;trochanters brownish yellow ; femora obscure yellorv,
the tips rather narrowly dark brown, the amount subequalon all legs; tibire and tarsi brownish black ; tibial spurformula L-2-2, the spurshairy ; claws (female)simple.
Wings brownish yellow, including the prearcular field ;cells C and Sc conspicuouslyand abruptly dark brown ;stigma clear bright yellow, each end slightly darkened;veins brownishyellow, darker in the costalregion. Veins
virtually without macrotrichia,thosebeyondcord entirely
glabrous, except for a single seta on R o*u, probably avariable character. Venation : ,Sc long, St, ending
opposite fork of -Es,Sr, rveakly preserved; Rr*, entire,
short, subequalto vein nr before it ; .8, relatively longand extended, cell nz at margin more than twice as
extensive as cell R, , cell M L lacking, there being only
three outer medial branches; cell 2nd A nanow.
Abdomen relatively long and slender; tergites darkbrown, the lateral borders broadly grey, of the basal
tergites more yellow ; sternites dark grey, the lateral
marginsnarrowly pale ; ovipositor with straight valves.
Hab. Brazil (Rio Grandedo Sul).
Holotype,?,NovaTeutonia,October7, 1936(Plaumann).
I am referring the present fly to Xenotipula Alexander(Ann. & Mug. Nat. Hist. (9) viii. pp. L7l-L72 (1921)),though with some question. The genotypeand hitherto
only known species, X. munroi Alexander, of Natal,differs in somerespects,notably the presenceof a short.
stout, frontal prolongation,l3-segmentedantennre,andlack of vein 8rr. However,both speciesagreein the lossof the nasus and in the essentialf'eaturesof venation,
as the lossof cell M L. The presentfly is the first Tipuline
speciesso far discoveredin South America in which cellM, is lacking.
Tipula absona,sp. n.
Mesonotal prrescuturn rvith lateral borders broadly
dark brown, the median stripe much paler ; scutellum
yellow, parascutella dark; mediotergite with a broad
brownish-black central portion, the lateral margins
broadly pale ; halteres pale ; legs long and slender,
yellow, the femora with a very narrow brown subterminal

Tipulidre.
newor little-lcnown

487

ring ; wings clear light yellow, with a restricted obliquezigzag pattern ; vein Rt*, entire i Rs nearly straight sothat cells Rz and Rs at margin are subequal in extent ;abdomen obscureyellow, scarcelypatterned.
Female.-Length about 15 mm. ; wing 15'5 mm.
Frontal prolongation of head light brown above, blackon sidesand beneath ; nasusshort'and stubby. Antennre
with scape,pedicel,and first two flagellar segmentsyellow;
succeedingsegments bicolorous, the basal enlargements
black, the remainder of the segmentsyellow ; terminal
segmentuniformly pale, verticils shorter than the segme_nts.
Head above buffy, the vertex narrowly darker mediallv.
Mesonotal prrescutum u'ith lateral borders broadly
dark brorvn, the median stripe much paler brown, darker
at anterior end, tapering rapidly to a point behind, thebroad interspacesyellow ; scutum testaceous,t'he centreof each lobe with two brown are&s; scutellum yellow,
the parascutella dark ; mediotergite with the central
portion broadly brownish black, slightly widened behind,lfre lateral borders broadly yellow. Pleura almost uniformly pale brown or yellowish brown, the posterior dorsopleuril membrane more infuscatedi Plgurotergite andmeron darker brown, forming a weakly defined transverse
girdle. Halteres pale. L"gs relatively long and slender;
co*re and trochanters yellou' ; femora obscure yellorv,
with a very narrow brown subterrninal ring, precededandfollowed by slightly m.oreextensive eleareryellorv annuli ;tibire and tarsi lellou'. lVings clearlight yellorv,the costal
portion a little lnore saturatecl; restricted brolvn areas
forming a more or less distirlct oblique zigzag_patt'ern,
incluclingareasat arculus ; acrossall cells basadof cord,much heavier and lllore cotrtinuous in the anal field ;and as seamsto the longituclinalveius beyond the cord,yellow,
especially of the outer uretlia,l field ; cell A cl_e_a1
ex^cepta\ t ; cell Sc clear, ex(,cpt,for three small darkened
u,r"u,ibelow lt,, at one-third the lengt'h of cell and at originof -Es, the outer end of cell clear ; an oblique darkened
cloud across cell BB beyond mid-length; a heavier dark)-shapedmark on petiole of cell M randadjoining veins; __ad.ark maik at outer end of cell M ; veins yellow, darker
in the clouded portions. Macrotrichia on longitudinalveins beyond cord, lacking on distal third of -Bs. Venation:

488

Dr. C. P. Alexandet onnft, _entire, but without trichia ; Rs nearly straight,
ce!s R, and f, at margin subequalin extent ; petiole ofcell Mr a little longer than m.
Abdomenobscuretestaceousyellcw, scarcelypatterned ;ovipositor with slender,straight cerci.
Hab. Ecuador (Oriente).
Holotype,?, Abitagua, Rio Pastaza,altitude gzb} feet,
November 6, 1936(Macintyre).
This very distinct speciesis most similar to Tipula
arecunaAlexander (northern Rrazil), but is very different
in the coloration of the body, legs, and wings. 'Ihegeneral appearanceof the fly is sorne\vhatsuggestiveof the genus Holorusia, but the verticillate anteruireancl
straight vein ^8, show the true position.
Tipula juuento, sp. n.
Belongsto the glaphyropteragroup i general coloratiorrof mesonotum brownish yellow, the prrescutum withthree darker brown stripes; antennrel2-segmented,short,bicolorous,yellow with black bases; femora with a conspicuous yellow subterminal ring ; wings cream-yellow,
with a tessellatebrown pattern; male hypopygium rvith
the lobes of tergite divergent ; eighth sternite narrowed
outwardly, pale and somewhatinflated at outer end, but
not bearing a distinct appendageor lobe.
Male.-Length about 15 nrm. ; wing 18 mm. ; antenna
about 2.8 mm.
Frontal prolongation of head brou n ; nasus distinct 'basal segnient oi palpus obscure brou,nish yellow, th;outer segments dark brorvn. Antennre l2-segmented,
short,, as shown by the measurements; basal threesegments yellow, succeedingsegments bicolorous, thepoorly-developed basal enlargement dark brown, theremainder yellow ; verticils long and conspicuous,exceeding the segments in length. I{ead reddish brown,
sparselypollinose.
Mesonotal praescutum brownish yellow, with threedarker brown stripes that are insensibly bordered bydarker brown, the lateral stripes reaching the lateralborders of the sclerite, restricting the ground-colour
to the interspacesand narrow humeral portions ; scutum
dark brown, the centres of the lobes darker ; scutellum

newor little-knownTipulidre.

489

yellow, p&r&scutella dark brown ; mediotergite darkbrown, the sides restrictedly obscure yellow. Pleuravariegated dark brown and obscure yellow, the former
including the dorsal pleurites and pleurotergite, the sternopleurite, and ventral pteropleurite paler. Halteres yellow.
Legs with the coxrc obscure yellow, darker basally, more
extensively so on fore legs ; trochanters yellow ; femora
brown, darker outwardly, with a narrow yellow subterminal ring, subequal in width to the darkened apex ;tibire and tarsi black. Wings pale cream-yellow,heivily
tessellated with brown ; cell C more uniformly brown,
Bc rnore yellow ; a series of darli areas in cell Bc, allproduced caudad into the cells bchind to form part ofthe mottled pattern ; an oblique dark cross-bandin outerradial field, from C to cell lst M r; outer ends of all veinswith pale spots, the veins narrowly"fl*rrors
seamed with dark .
veins tark, ioor. brightened.in theareas. V"nu]tion : R* z entire ; vein Rs slightly sinuous and somervhat decurved on outer portion, so cell ,8, is about onehalf rnore extensive at margin than cell Rs ; cell lst M,
broad, pentagonal ; petiole of cell M, and m subequal.
Abdorninal tergites brownish yellow, the basal segments
conspicuouslyblackenedlaterally ; hypopygium brownish
yellorv ; sternites yellow, the outer segments rnore
darkened. Male hypopygiurn with the tergite narrorved
outrvardly, rvith two intermediate divergent flattened
lobes, the tips acute, separated from one another by a
U-shaped not'ch. Outer dististyle long and slender.
fnner dististyle narrow, the basal portion produced
ventrad some distance belorv the point of insertion.
Eighth sternite extensive, narrou-ecl outrvardly, themedian area at apex pale a,nclsollle\\'hat inflated, feebly
notched and provided u'ith short setrc.
Hab. Ecuador (Oriente).
Holotype, 6, Abitagua, Rio Pastaza, altitude 8250feet,
November 6, 1936(Macintyre).
Among the describedspeciesof the glaphyropteragroup,
closest to Tipula duida Alexander, of Venezuela,differing
especially in the structure of the male hypopygium. The
antennreof the latter fly, while short, are distinctly longer
than in the present speciesand have the normal numberof 13 segments,

490

Dr. C. P. Alexandeton

Tipuln seruul,sp. n.
General coloration of mesonotum yellow, the prrescutum with three dark brown stripes ; scutelium,
1e$io-tergite, rld pleura yellg,w; ventral pleurotergite"th,dark brown ; femora brownish yellow, jusl before
tip with a black ring, precededby u cleareryellow annulus .
wings pale yellowi-sh cream, variegated *itt brown t;form a tessellatedpattern ; vein8r*, atrophied; abdominal
tergites_orange-yeilow,
virtually immaculate medially.
Femalr.-Lgngth about 14 mm. ; wing L4.bmm.
Frontal prolongation of head light yellow above, darkbrown on sides; nasus very short and stout ; palpi
with basal segment brownish yellow, remainder darkbrown, the incisures restrictedly paler. Antennre withthe scape, pedicel, and first flagellar segment yellow-brown,;rgmar]oitrg_
flagellar segmentsweakly bicolorous,
the basal enlargement darker. Head. buffy brown,
unmarked.
Pronotum yellg_w,darker on sides. Mesonotal prescqfup^yellow pollinose,with three very conspicuousand
well-defined dark brown stripes, the median one withcephalic end paler ; scutum with median are& obscureyellow, the lobes extensively dark brown ; scutellum
yellow, p€,.rascutelladark brown ; rned.iotergiteoliveyellow. Pleurotergite with ventral part daik brown,
the remainder yellow i pleura yellorv, variegated withdark brown _on propl_eura. Halteres with stem yellow,
knob dark brown. Legs with coxre and. troclianters
yellow ; femora brownish yellorv, just before tips with ablack ring of moderate width, preceded by ; clearer
yellow annulus, the extreme tip very narrowly obscureyellow; tibire brownishyellow,the tipsnarrowly darkened;t'arsi brownish black. Wings pale yellowish creanlvariegalrd with brown to f6rm- a te"ssella;--p"11;;^;prea,rcularfield :hi:{y darkened; cell C almost uniformly
p-aleb-r9ryn; cell 8c bright yellow, with four brown spoti,
the third above the origin of frs ; st gma brown, its
proximal end pale ; the dark discal pattern includes
zigzag area,scrossingthe cells basad of cord and broad.
seams to the veins beyond cord, leaving the centres

newor little-lcnownTipulidre.

491

of the cells pale ; cell 2nil A darkened,the base and subapical portion pale ; veins dark, pale yellow in the groundareas. Squama naked. Venation : Sr, ending about
opposite three-fourths the length of -Bs, the latter morethan twice rn-cu i B*,
entirely atrophied ; Mr*n
relatively short ; nx-al a short distance beyond base of
M n, the first section of the latter perpendicular; cell
2nd A rclatively narrorv.
Abdorninal tergites almost uniformly ora,nge-yellow,
immaculate or virtually so, with vague indications of amedian darker stripe on the intermediate tergites ; lateralborders of the more basal tergites narrowly blackened;sternites yellow, the caudal portions narrowly darkened
subterminally, the extreme margin grey. Cerci slender,
straight.
Hab. Brazil (Rio Grandedo Sul).
Holotype,g,NovaTeutonia,August 27,1936(Plnumnnn).
Tipula seraal is allied to T. fraud'ulenta Alexander, inthe total atrophy of vein Rr* r, differing very conspicuously in the coloration of the body and wings. It isquestionablewhether these two speciesare to be considered as representing unusually large species of thesubgenps M iuotipula Alexander.
Limonia (Geranomyia)umbricolor,sP. r.
Generalcolorationbrou'nishblack ; rostrum less thau
one-half the remainder of body ; halteres and legs darkbrown to black ; u'ings u-ith a strong blackish tinge,
the stigma darker ; Sc relativell- short ; ?tt-cu at forkof M ; male h;'popygiuru u-ith the rostral spines of theventral dististyle moderately long, placed close together
withon short, slightly unequal tubercles; gonapophyses
mesal-apicallobe u'ith numeroussetulre.
Male.-Length, exclutling rostrum, about 7 mm. ;wing 7 mm. ; rostrurn about 2'8 mm.
Rostrum dark, the tips ofthe labial palpi paler. Antennre
black throughout ; basal flagellar segmentscylindrical,
the outer ones passing into oval ; terminal segment
about one-third longer than the penultimate ; verticils
short. Head dark.
General coloration of mesonotum brownish black, thehumeral and lateral regions of the prescutum a little

492

Dr. C. P. Alexanderonbrighter. Pleura infuscatedon dorsal portion, the sternopleurite and meron yellow. Halterej dark brown, thebase of stem restrictedly pale. Legs with the coxre andtrochantersyellow, the basesof fore co"re a trifle darkelecl;
remainder of legs black, the extreme femoral basespater.
pings with ? stlong blackish tinge, unmarked eicept
for the somewhatdarlier stigma; ,reiis brown. venatioi tsc.relatil{y short,-Bc, endirg u short distancebeyond theorigin of -Es,the distance a6out equal to Rr*2, Scznear
and{s tip- and similarly beyond the origin of fis ;- Rri,-veind;T; su-bequal; cell lst M, subequal in lengthv
M r*, beyond it ; rn-cu at f.ork of M .
Abdominal tergites dark brorvn, the stenrites obscureyellow-;rvith thelr.rnonygium dark. Male hypopygium
ventral dististyle large and fleshy, more than tlrree
times as extensive as the basistyl" ; rostral prolongationof moderate
le1gth,_bearingtwo straight spin& of aplroximately equ.al length ; spines from very tlosely approxi-slorter
mated to virtually confluent tubercles,one a little
than the other ; spines exceedingin length the apex ofthe.prolongation beyold their inseltion. I)orsal ctisiistylo
a short sickle-shapedblade that is about tu,ice the lengttt
of the rostral spines. Gonapophyses
rvith nresal-api6al-surf'acelobe narrow, pointed at tip,- theProvided *itttnumeroussetulre.
Ha,b. Ecuador (Oriente).
HololU_pe:?, Baflos, altitude 5850 feet, September L2,
1936(Macintyre).
_ .rn ilr general appearancethe present fly is closest to
Limonia (Geranomyia) infamosa Alexandet (southern
Brazil) and L. (c.) lachrymalis (Alexander) of panama,
Ecua,dor,and Peru,differing very conspicuouslyfrom bothin the structure of'the male hypopygium. 'rlie abund.ant
setulre on the nresal-apicallobes of the gonapophyses
are quite different from the condition fbunclin othei uili"aNeotropical speciesof Geranomyia,though found in several
Oriental species.
Shannonomyiacasia, sp. n.
General coloration clear light grey ; prrescutum withthree slightly darker grey stripes-; lialteres yellow ;femora yellow, tibire and tarsi dark brown to'black ;nelt or little-lcnownTipulidre.

493

wings whitish subhyaline, sparsely patterned with brown,
including the st'igma and sea,msalong cord and outer endof cell lsf M z; abdomen dark brown, the subterminal
segmentsmore yellowish.
Male.-Length about 5.3-5.5mm. ; wing 5.4-5.6mm.
Rostrum black, sparsely pruinose ; palpi black.
Antennre with scape obscure yellow ; pedicel darkbrown ; flagellum broken. Head clear light grey ;posterior portions of vertex behind eyes a little moredarkened ; a capillary dark vitta extending from anteriorvertex to occiput.
Mesonotum clear light grey, the prrescutum with threeslightly darker grey stripes ; tuberculate pits lacking ;central portions of scutal lobes weakly darkened. Pleura
light grey. Halteres yellow. Legs with the coxre
brownish yellow ; trochanters yellow ; femora yellow ;tibire and tarsi dark brown to black. Wings whitish
subhyaline to pale yellow ; a very sparsebrown pattern,including the small stigma and narrow se&msat originof Bs, along cord and outer end of cell Ist M r; veins pale,slightly darker in the clouded areas. Venation : ,Sc
long, Sr, ending a short distance before fork of 8s, Sr,
near its tip ; Bs longer than usual in the genus, B z at or
shortly before fork of Rr*s+a i cell lsf M, relatively
small, only a little longer than vein M o beyond it ; nx-cu
about one-third to one-halfits length beyond fork of M.
Abdomen dark brou'n, the subterrninalsegnrentsmore
yellowish. Male hypopygium u'ith the outer dististyleunequally bifid at, apex. the outer tooth long and spinelike. Gonapophysesappearingas strongl.vcurveclspines.
Hab. Brazil (Rio Grandeclo Sul).
Holotype,6,, Nova Teutonia. September4, 1935 (Plaumann). Paratopotyp€,3, August 26, 1936.
Shannonomyiaepsi,rt,
is quite rlistinct frortr other somewhat similar regional species,sueh as S. p&raguayensis
Alexander, in the clear light grey colour of the head andthorax, in conjunction u'ith the differences in patternof the legs and wings.
Shnnnonomyiajusta, sp. n.
General coloration grey ; prrcscutum vaguely striped
tvith brownish ; halteres pale yellow ; femora obscurg

494

Dr. C. P. Alexandetonyellow, the tibire and tarsi darker ; wings whitish subhyaline, conspicuously patterned with small brown areasthat are confined to the vicinity of the veins ; frs shorter
than cell lsf Mzi Rz before fork of Rr*+a i veins Rs
and R 4 strongly curved cephalad at, distal ends ; celllst M r longer than any of the veins beyond it ; abclonren
chiefly dark brown, the basal sternites more bicolorous;
hypopygium dark.
Male.-Length about 7'5 mm. ; wing 7'5 mm.
Rostrum grey pruinose ; palpi black. Antennre short ;scape and pedicel light yellorv, flagellum more brownish
yellow, darker outwardly ; basal flagellar segmentswith
the lower face convexly rounded, the outer segments
passing into cylindrical ; verticils long and conspicuous,
much exceeding the segments in length. Head clear
light grey, with a very indistinct capillary dark vitta ;anterior vertex wide.
Pronotum whitish grey. Mesonotal prrescutum grey,with four scarcely indicated, more brownish stripes ;posterior scleritesof notum grey, the scutal lobes vaguelydarkened. Pleura grey, variegated with brown on theanepisternum, ventral sternopleurite, and on the pleural
membrane before the wing-root. Halteres pale yellow.
Legs with the coxre pale, sparsely pruinose ; trochantersobscure yellorv ; femora obscure yellow to brorvnish
yellow ; tibire and tarsi darker broln. Wings whitish
subhyaline, conspicuously patterned with rather small
brown area,s,as follows :-At h ; origin of Bs ; fork of ,Sc;
stigma ; cord and outer end of cell lsl M r; marginalarea,son all longitudinal veins with the exception ot' Ru,largest and most conspicuouson Rr, R n, and znd A ;veins yellow, darker in the clouded areas. Venation :,Sc of moderate length, Sc,. ending shortly before forkof Rrr*+e i Br*4 present as a very short element ; veinsRs and R 4 curved strongly cephalad at distal ends ;cell lsl M z long, exceedingany of the veins beyond it ;n'L-cu at, near one-third to one-fourth the length of cell
LstM r; vein znd 14.with a weak spur near tip.
Abdomen chiefly dark brown ; basal sternites morebicolorous,obscureyellow, the caudal margins darkened;outer segmentsand hypopygium dark brown,
Hab, Brazil (Rio Grande do Sul).

Tipulidre.
newor little-knausn+95

Holotype, 3, Nova Teutonia, October L2, 1935 (Plaumann).
fn its conspicuous wing-pattern and general detailsof venation t'he present fly agrees most closely with
Slmnnonomyia lathraa (Alexander), of Colombia, which
differs in the coloration of the body, legs, and wings,
and in the venation, as the longer fts, nearly straightveins B, and R o, and the arrangement of veins at the outerend of cell Lst M r.
sp. n.
Heratoma (Eriocera)peruersa,,
General coloration of notum dark brown, the prrescutum with three reddish stripes ; antennre short,
7-segmented, the basal four segments pale ; thoracic
pleura with a, broad dorsal blackish stripe ; halteres
slender, dark brown ; legs yellowish brorvn, the outertarsal segments darkened ; wings with a brownish tinge,
the cord and outer end of cell lsf M z broadly seamedwith darker brown ; longitudinal veins beyond cordwith numerous macrotrichia ; cell Rz at' margin about
two and one-half times as extensive as cell Rs; celllst M r long-rectangular, with n'L-cuat mid-length.
Male.-Length about 13 mm. ; wing l2'5 mm.
Rostrum and palpi black. Antennre 7-segmented,
short ; scape, pedicel, and first two flagellar segments
yellou', the outer segmentspassing into black ; flagellar
segments cylindrical, the outer ones u'ith long conspicuousverticils. Head clark brou-n,the orbits paler.
Mesonottr,lprrescutunrchiefl.voccupietl br- tluee reddish
stripes, llarl'ou-ly borclererllr)- tlarlier brou-n interspaces,
the humeral ancl lateral portiorts light yellorv ; centresof scutal lobes reclclish.the retnaitrclerof notum darkbrown, only the posterior half of the rnediotergitepaler,
this colour continuecl cephalad and laterad on to thedorsal pleurotergite. Pleura traversed by u broad dorsal
blackish stripe extencling fronr the cervical region to theabdomen, occupying the propleura, anepisternum, dorsal
pteropleurite, and most of pleurotergite ; dorsopleural
membrane pale; ventral pleurites testaceous yellow.
Halteres long and slender, dark brown. Legs with thecoxre and trochanters yellow ; remainder of legs yellowish
brown, the outer tarsal segments darkened. Wings

496

Dr. C. P. Alexandet on

tinged with brown, restrictedly patterned with broad,darker brown seams, as follows :-Origin of frs ; cord,
outer end of cell Ist M, and vein Rz; longitudinal veins
beyond cord less distinctly margined with brown ; veinsdark brown, not or scarcely darker in the clouded areas.
All longitudinal veins beyond cord with numerous longmacrotrichia. Venation : Sr, ending beyond level ofr-ffi,,Sc, about oppositefork of .Esi Rz+, about one-halflonger than -8, and more than half as long as Rr* r, thelatter nearly three times R z alone ; vein Rs at' margindeflected rather strongly caudad so cell Rz at' margin is
fully two and one-half times as extensive as cell Ra ]cell Lst M ,long-rectangular, nearly as long as vein M r*,
beyond it and exceedingin length the distal section ofvein Ms; rn4u at near mid-length of cell LstMr, subequalin length to outer section of vein Cur,; cell znd A rclatively
narrow.
Abdominal tergites brownish black, the extreme
caudal ends and slightly wider bases of the segments
paler, on tergite two with the base more extensively
brightened; basal sternites yellow, the outer segments
and hypopygium more obscured.
Hab. Ecuador (Oriente).
Holotypa,3, Yunquilla, altitude 5850feet,Noveurber19,
1936(Macintyre).
Heratoma (Eriocera)peraersa is very clistinct from all
describedspecies. It is most similar to H . (8.) pallid'ipes
Alexander (Mexico),differing conspicuouslyin the wingpattern and colorationof the body and legs.
(Sigmatomera)aquinoctialis, sp. n.
Sigmnton'Lera
General coloration yellow to fulvous yellow; flagellar
segmentsbicolorous, black, the apex of each segment
restrictedlyyellow ; flagellarsegmentsmoderatelyincised;femora obscureyellow, the tips narrowly brownish black,precededby a somewhatcleareryellow ring ; wings witha strong yellowish tinge, the tip faintly infumed ; narrowbrownish-black seamsalong cord and outer end of celllsf M z; Rr*, and Rz short,, subequal; Rr*r+n and n1,
angulated and short-spurred at' near mid-length; celllsl M z long, exceeding any of the veins be,vond it ;rLeuor little-knownTipulidre.

+97

abdomen orange-yellow,the base of ovipositor and preceding segmentblackened.
Femnle.-Length about 15 mm. ; wing 15 mm. ;antenna 7 mm.
Rostrurn and palpi yellorv. Antennre with the scapeand pedicel yellow ; flagellar segmentsbicolored,black,the apex of each segmentrestrictedly yellorv, the amountof the latter decreapingon the outer segments; flagellar
segments moderately incised. Head brownish yellow ;anterior vertex narrorv,only about one-third to one-fourth
the diameterof scape.
'Ihorax uniformly yellow to fulvous yellow. Halteresyellow throughout. Legs rvith the coxreand trochanters
yellow ; femoraobscureyellow, the tips narrowly brownish
black, preceded by a somewhat broader, clearer yellow
ring ; tibire obscure brownish yellow, the tips narrowly
darkened; tarsi dark brown to brownish black. Wings
with a strong yellow tinge, the stigma and outer cells
faintly infurned ; narro\ry brownish-black areas a,ppear
as seamsto the following veins:-Extreme origin of .Bs,
Sc2,cord, outer end of cell lsl M r, outer end of stigma
and extreme wing-margin at, ends of veins Rr, Mr*r,
M r, and IUI4; veins yellow, darkenedas describeclabove.
Yenation : Sc relatively long, 8r, ending shortly before
fbrk of Rr**4, Sr, oppositethe angulationof the lattervein i Il*, atrcl ll, short, sttl-reclta,l;both Br*r*n and?n angulated arrd short'-sllurrecla,t lre&l'micl-length; cord
rnoderatel;' oblique ; cell lsl JI " long, exceeding anyof the veins beyond it ; itl-ctt a,t lbrli ot'il.
Abdomen orarlge-yellou-; lrase of' ovipositor and preceding segnent blacketrecl; cerci biclentate at tips, as insubgenus.
Hab. Bcuador (Oricnte).
Holot'ype, ?, Hclaila, Rio Attzu, altit'ude 2l 15 feet,
December23, 1936(llacintyre).
By my rnost recent liey to tho speciesof Sigtnatorneru(Encycl. Entomol., Diptera, v. pp. 1-8 (1930))the present
fly runs to S. (S) seguyi Alexander (Costa Rica), rvhich
differs conspicuously in the uniforrnly blackened antennal
flagellum, as well as in the venation and colorationof the wings.

498

Dr. C. P. Alexandet on

Gnophomyia(Gnophomyia)dupler, sp. r.
General coloration rusty, the prrescutumrvith hurneraland lateral portions pale yellow ; postnotal mediotergite
chiefly blachened; a na,rrow black longitudinal stripe on
dorsal pleurites ; femora yellow, narrowly brownish
black at or closeto tips ; rvingssubhyaline,with two pale
brown cross-bands,the rnore basal one incomplete, theouter fascia completely traversing the wing, lying at or
before the cord ; Scr ending about opposite mid-lengthof R, ya+c i cell lst M , small.
Fernale.-Length about 7 mm. ; wing 7'5 mm.
Rostrum yellorv ; palpi dark brown. Antennre withscapetestaceous; pedicel pale brown ; flagellurn black ;basalflagellar segmentscylindrical, the outer onesbecoming
progressively shorter, passing through elongate-oval tooval. Head light ferruginous.
Mesonotal prrescutum rusty, the humeral and lateral
portions pale yellow, the disk without clearly defined
str:ipes; scutum reddish brown, the centres of the lobes
slightly darkened; scutellum weakly infuscated; postnotal mediotergite black, the cephalic lateral portions
paler. Pleura pale, with a narrow, almost entire, black
longitudinal stripe across the dorsal sclerites, extending
from the cervicalregionto the centralportion of the pleurotergite, immediately above the root of the halteres.
Halteres pale, the knobs brownish black. Legs with thefore coxre weakly darkened, the remaining coxre moretestaceous; trochantersyellow ; femora yellow, narrowly
brownish black at' or just before the tips, the amountsubequal on all legs ; tibire yellow, the tips very narrowly
darkened; t'arsi yellow, the outer segments darkened.
Wings subhyaline,with two pale brown cross-bands,theoutermost at and before cord, extending from the stigma
to the posterior wing-margin in cell Cu ; basal band
incomplete, embracing the proximal ends of cells Cu,
lsl A, and 2nil A; extreme outer end of cell lsf ll[zdarkened,but the cell otherwiseentirely pale; r'eittspale,darker in the clouded portions. Venation : -Rsrelatively
short, less than vein M n alone,,Sc,ending sorneclistauce
before Rr, at near mid-length of Rr* +ai cell lsl M z
small, about tu'o-thirds the length of vein J/o be;'oudit.

newor little-lcnownTipulidre.

499

Abdomen yellowish brown, the caudal portion of thefirst tergite black ; sternites more uniformly pale. Ovipositor with the cerci small and straight.
Hab. Ecuador (Oriente).
Holotype,?, Yunquilla, altitude 5850feet, November 19,
1936(Macintyre).
The nearest allied speciesis Gnophomyia(Gnophomyia)
laticincta Alexander (Panama), which differs conspicuously in the coloration of the body, antennal flagellum,
legs,and wings.
Erioptero (Erioptera) multiannulata, sp. n.
Belongs to the annulipes group ; mesonotum brown,
the prrescutum narrowly blackened laterally ; thoracic
pleura conspicuouslystriped longitudinally with whitish ;halteres white ; legs conspicuously ringed rvith black,.rvhite,and yellow ; femora with two black rings ; tibire
rvith central two-thirds yellow, each end narrowly snowyu'hite, precededby a narrow black ring ; wings strongly
tirrged *'ith brorvn, unmarked ; rrein 2nil A sinuous,
simple.
Female.-Length altout 4 rnm. ; wing 3'7 mm.
Rostrum anclpalpi blacli. Antellnreblacli throughout ;verticils. Headflagellarseglnentsu-ith long eotrspicttous
dark brou'n.
u-hitenedon sidesand
Pronotum dark brou-trrnediall.r-.
ol1 cephalic portion. Ltr,teral llretergites dirty u-hite.
Mesonotalprrescutumrather liglrt brclrt-tt,ttarrou-l.vdarlibrownish black on lateral border ; seuttttn light brou-n.
the centres of lobes more darkened; scutellum brorvn
basally, paler apically ; mediotergite chiefly brorvnish
black. Pleura black, with a conspicuousu'hitish longitudinal stripe, beginning as a n&rrow point behind thefore coxre,widened behind, the dorsal edgeat the baseof
halteres; dorsopleuralmembraneobscureyellow ; ventral
sternopleuriteyellowish brown. Halteres white, especiallythe knobs. Legs with the fore coxrebrownish black, theremaining coxre pale brown ; trochanters testaceous;legs conspicuouslybanded with black. white, and yellow;
the hind leg is describedas representativeof this pattern :femora with basal fifth pale brownish yellow, a trifle
deeperat outer end ; secondfifth snowy-white ; central

500

Dr. C. P. Alexanderon

fifth black ; distal end including a black ring nearly
equal to the more basal black one, preceded by a whiteannulus half as rvide and a narrow white tip ; tibire withthe central trvo-thirds yellorv, each end narrowly snowywhite, preceded by a similar narrowly blackened thg ;tarsi yellow, the proximal fifth of basitarsusblack. Wings
with a strong brownish tinge, unmarked ; veins pale ;macrotrichia light brown. Venation : cell ll[ z open byatrophy of m ; vein Znd r4.sinuous, simple.
Abdomen rather bright brown, narrowly blackened
laterally ; interrnediate tergites with a narrow dark vitta.
Hab. Brazil (Rio Grande do Sul).
Holotypa,?, Nova Teutonia, October6, 1936(Plauman'n).
Reaclily told from all other described members of theannuliptes group by the unmarked wings. The natureof the leg-pattern is distinctive of the species.
Molophilus (llfolophilus) debi,listylus,sp. n.
Belongs to the Ttlagiatus group ; general coloration
dark gre)', the hutneral region of prrescutum conspicuously
yellow; antellnre (d) short; halteres vellow, the knobs
u'eakly itrfuscated ; legs black ; male hypopygium withthe basal dististyle a stout pale fleshy lobe, provided withlong scatteredsetre.
Male.-Length about 3'B-4 mn1. ; rr'itlg 4'I-4'3 mm.
Rostrum and palpi black. Antennre short, black ;flagellar segments elongate, rvitlt verv long. unilaterally
distributed verticils. Head black.
Pronotum and anterior lateral pretergites yellou'.
Mesonotum grey ; prascutum u'ith median area broadly
dark brorvn ; humeral region of prmscuturn conspicuousl.yyellow ; scutellum dark. Pleura dg_t\ gre|: the anteriorclorsopleural tnembr&ne yellow. Halteres yellou', thc
knobs weakly darhened. Legs with t'he coxre ancl troctranters testaceousyellorv ; remainder o1'legs black, theextrerne femoral bases paler. Wings relatively broad,rvith a strong brownish titrge, the stigmal region darl<er;axilla lveakly darkened ; veins brou'nish ;'ellotv. trichia
darker. Venation : Ez lying a short distance befbre'
level of r-rn, ; petiole of cell M "s less than t'rvice n1'-olcvein 2nil A long, ending about opposite micl-length oi
petiole of cell M ?.

newor little-knownTipulidre.

501

Abdomen brownish black, the hypopygium a littlebrightened. Male hypopygium with apical beak ofbasistyle slender. Outer distist'yle with the stem short andstout, expanded outwardly, the lobes short and obtuse,
especiallythe outer lobe. Basistyle a stout, pale, fleshy
lobe, provided rvith long scattered setre. Phallosomic
plate a broadly flattened glabrous structure, the caudal
portion rvidest,the apical margin truncate.
Hab. Brazil (Rio Grande do Sul).
Holotype,6, Nova Teutonia, July 11, 1936(Plaurnann).
Paratopotype,J, October10, 1936.
In the general structure of the male hypopygium thepresentflya,greesmost closelywith Molophilus (Molophilus)
c&nosllsAlerander. It differs conspicuouslyin the shortantennre,broad wings, coloration of the body, legs, andwings, and in the details of structttre of the rnale hypopygium, especiallyof the basal distist.vleand phallosornic
plate.
sp. n.
Molophilus(Ilolophilus) ernarginat'LLs.
Belongs to the pla,giatus group ; general coloration ofmesonoturnbrou-n.the post'eriorscleritesbrownish black ;antennre (d) short ; pleura chiefly covered by a blackishlongitudinal stripe, widened behind ; haltergs yellow ;legs yellow, the tarsi darker ; wings greyish yellow ; male
hipopygium with the basal dististyle _a slender blackrod, bearing a, strong lateral spine before apex and asmaller one just beyond mid-length ; phallosornicstructure
denselysetlvith erect coarsesetre,the apex with a U-shaped
median notch.
Mal,e.-Length abtlut 4 lnm. ; wing 4'7 mm.

Rostrum and palpi black. Antennre short, black ;verticils. Headflagellar segmetrts rvith unusually long vertrcrl
brorvn, the front ancl orbits m91eyellowish.
pale
Pronotum t,estaceousyellou'. Mesonotal prrescutum
brown, the hutueral regiotr pale yellow ; scutellum andmediotergite bro'rr-nish bltr,ck. Pleura chiefly eovered
by & broad black longitttdinal slripg, narrowest on the
piopleura, greatly u'idenecl behind, the dorsopleuraliegion pale ; ventral sternopleurite eltrd rneror] paler
brownish black. Halteres ;'ellou-. Legs with the forecoxre infuscated ; remaining coxre and all trochanters
yellow ; rema,inderof legsyellow, the tarsi darker. Wings

502

Dr. C. P. Alexandet on

greyish yellow, the prearcular and costal portions clearer
yellow ; wing-axilla a little darkened; costal fringe
and trichia of veins brown ; veins pale. Venation :Rz lying just distad of level of r-n1,; petiole of cell Ms
about one-half longer than nl,-cu; vein 2nd A long,extending to slightly beyond level of m-cu.
Abdomen dark brown ; hypopygium somewhat paler
brown ; subterminal segment obscure yellow. Male
hypopygium rvith the apical beak of basistyle slender.
Outer dististyle with the lateral arm parallel-sided,
truncated at, tip ; inner arm a slender straight blackspine. Basal dististyle a slender black rod, bearing aconspicuousspine shortly before tip to produce an unequally bifid apex ; a secondsmaller spine just be;rond
mid-lengthof the style. Phallosomicstructurewith surface
denselycoveredwith erect coarsesetm; apex of structurewith a U-shapedmedian not'ch.
Hab. Brazil (Rio Grande do 'Sul).
Holotypa,S,Nova Teutonia,July 15, 1936(Plaumann).
Molophilus (Moloph'ilus) enrurginatusis very different
from all generally similar regional forms, being characterized especiallyby the structure of the male hypopygium,as the dististyles and phallosomic structure. fn the
shape of the basal dististyle the species somewhat
resembles 1l[. (M.) fagetorunl Alexander (Chile) andIUI.(M .)schultzei^Llexander(Mexico),yet is quite distinct.
leu,costencc,
T ororhina (Ceratocheilus)
sp. n.
General coloration polished black ; front and orbits
light grey ; pleura black, sparsely pruinose; halteresblack ; legs black, tarsal segrnents 2 and 3 sfrow.1,-white ; wings with a strong blackishtinge, cellsC and ,Sc,
with the wing-apex, still darker ; abdornen black, thecaudal margins of the individual segrnentsbroadly lightgrey.
Female.-Length, excluding rostrum, about B mln. ;wing 6'5 mrn. ; rostrum 3 mm.
Rostrum and palpi black. Antennreblack throughout.
Front and orbits light grey, t'he vertex and occiput
abruptly light grey.
Pronotum black. l\fesonotumentirely polished black.
Pleura black, sparsely pruinose. Halteres black, the'newor little-knownTipulirlre.

503

base of stem restrictedly yellow. Legs black ; tarsal
segmen_t3 and all of segment 2, with the exceptionof the base,snowy-white. Wings with a strong blackisht_rnge,cells C and Bc, together with the wing-tip, still
darker ; veins black. Venation : Sc ending about
gPpositefour-fifths the length of the long, fbebly angulated
Rs ; anterior branch of -Bs perpendicular and angulated
at origin, for rnore than its basal half extending generally
parallel to the posterior branch, at margin cell Rz a little
n&rrower than cell Rs:' basal section of vein B, nearly in
longitudinal alignment with ,Rs; cell lst M , rectangular,
shorter than vein M r*, beyond it ; nx-cu about one-third
its length beyond fork of M ; cell 2nd I moderately wide.
Abdomen black, the caudal margins of the individual
tergites and sternites broadly light grey, the amountinvolving betrveen one-third and one-fourth the lengthof the segrnent; genital shielclblack ; valves of oviposilor
light horn colour ; cerci straight.
Hab. Dutch Guiana.
Holotyp€,?, King Frederick William Falls, CourartyneRiver, November 30, 1935 (J . G. Myers) ; collector's
no. 5946.
Tlre only other American speciesof Ceratocheiluswith
white t'arsal segments is Tororhina (Ceratocheilus)niaei,tarsis (Alexander) of Panama and Colombia, which
differs conspicuously in the coloration of the body, legs,
and wings. The present fly bearsa somewhatnoteworthy
superficial resemblanceto Elephantomyia(Elephantomyia)
tarsalba Alexander, likervise from Dutch Guiana. The
genera I'ororltina and Elepltantornyia are not closely
allied, despite the similarity produced b.y the elongate
rostra and the general features of' venation. Tororhina
is readily told by the profbundly bifid setre that clothe
the legs, rn Elephantomyiathesebeing simple. The basic
plan of structure of the male hypopygium of the two groups
is entirely different,.
Tororhina (1'ororltina) stenophallus,sp. n.
General coloration dark gref, the prrescutum withfour narrow brown stripes ; legs obscure yeliow, the tipsof the tibire conspicuouily blackened ; wings subhyalinie,
tlr.e prearcul&r' field light yellorv ; abdomen bicolorous,

504

0n newor little-knownTipulidre.

tergites obscure brownish yellow, the caudal margins
and a transversefascia before mid-length dark brown;
rnale hypopygiop wit-h branches of redeagusunusuallv
lon_g,sinuo_us,
subequalin length to the basistyle.
Male.-Length, excluding rostrum, l0 rnm. ; rving
6 mm.
Rostrutn broken. Antennre blacli throughout. [leacl
dark grey.
Cervical region black, sparsely pruinose. Mesonoturn
dark grey, the prrescutum with four n&rrow brownst'ripes, the intermediate pair confluent in front, very
narro\r:, and becoming obsolete before suture ; scutal
lobes darkened. Pleura dark grey, the ventral sternopleurite darker. Halteres dusky, the base of stenr
restrict'edly pale. Legs with the fore coxre dark, theremaining coxre and all trochanters obscure brownish
yellow ; femora and tibire brownish yellow, the tips of thelatter conspicuouslyblackened; tarsi brown, the lerrninal
segments a trifle darker. Wings subhyaline, the prearcular field tight yellorv ; axilla weakly darkenbd ;veins brown, those at' rving-baseyellow, in the costal
region pa,lerbrown. Venation : cell rst M ,longer thanany of the veins beyond it ; m-cu closeto fork of U.
Abdomen bicolored, the tergites obscure brog-nis[yellow, with the caudal margin and & transverse fascia
before mid-length darli _brou,n; subterminal segments
uniformly darkened ; hypopygium brownish yellow.
Male hypopygium with the apex of basistyle on mesal
facg produced into a slender spine. Distislyle between
mid-leng_thof the beak and base of style on outer margin
with a thin flange that is produced into a seriesof conspicuousteeth to producea serrateappearance. Brancfuesof adeagus unusually long and conspicuous,sinuousancl
bidecussate,each arm approximately equal in length
to the basistyle.
Hab. Brazil (Rio Grandedo Sul).
Holotype,6,Nova Teutonia, September80, lg3b (I'ltttcmann).
Tororhina (Tororhina) stenophallusis amply
distinct-coloration
frop ?ll other described species. The gretof body, transversely fasciate abdomen, ana structureof the male hypopygium are distinetive.