Extracto de la uRet;istaClillena de Historia Natttral>
Aflo XXXII (1e2e)pp. 164-168

oftheGenut
GnophoNewor littla-known
tpeciasmyia0sten5ahen
anO?er[fromEcua0or(fam.
TipuliOae;0r0er
Diptera)c h a rl e s,." ;T E x A N D ERl ,[r ss. Ag r ie . o ' lte g e , Am h e r sr ,r r u .fn rn"r*o.E N TE N A R y)

The crane-fliesof the genus Gnopltomyia
Osteu Sacrepresented
ken are abunclantlyin the AmericanTropics.
In the present report, I rvish to describeas nerv threespecies,trvo of rvhich vere taken in Ecuadorby Mr. G.
H. H. Tate, the third in Peru and includetlin material
sent to me many yearsago hy the late Dr. OolomanKert6sz.At this time, I 'rvishto discussin'greater detail
Gnophontrlia
ntaestitiaAlexander,the holotypeof rvhichis
preservetl
in the llnngarian NationalMuseum.llhe typesof the noveltiesdescriberl
at this time are preservedin
my collection.
Gnophomyia(Gnophonyia) molinae, sp.n.
Generalcolorationreddish brorvn; thoracic pleura
rvith a brown dorso-lougitudinal
stripe:knobsof halteres
infuscated;rvings with a faint brolvn tinge; r-m,on Rs
beforethe fork of the latter; rnalehypopygium with theouter dististylepaleyellorv,conspicuously
dilatetlat near
midlength.
Male.-Length about4 mm.;rving 5 nrm.
Rostrumdark brorvn,the palpi palerbasally.Antenuae dark browu, tho scapalsegmentspaler beneath;antennaerelativelylong, if bent bachwardextendingahout
to the rving-root;flagellarsegmentselogante,the verticils exceedingthe segments.Heaclclarkgray.
Pronoturnpale; anteriorlateral pretergitespaleyellorv. Mesonotumlight reddish brorvn, rvithoutdistinct

1 65

Ale xa n d e r .- - sp n ( jln s o l' T r E GENI TScN oprrorl vrA

markings;pseudosutural foveaepalerecldish,broadly
triangulalin outline.Pleuraobscureyellou',\yith a broad
brorynlongitudinalstripeon the dorsalsclerites.Halterespale,the knobsinfuscated.Legs rvith the coxaeand trochantersyellorv;femorabrorvnishyellorv,the tips vaguelydarkened;tibiae and tarsi yello'w,the outer segmentsof
the latter darhened.Wingsrvith a faint brorvntinge;veinsdark blor,vn.Venation:r-ri on ,Essome distancebefore
the folk of the latter; veins/?3 and -Balong anclparallel;
cell rst Mz elogante,wideneddistally; nt-cu about ttvothirds its length deyondthe fork of M.
Abdominal tergites dark brorvn; sternites obscurc
yellow;hypopygiurnobscureyello'lv.Male hypopygiurn(Fig. 1)with the tergite(9 t)produceclinto
a broadmediarrlobe,the apex nalrorvedand blackened.Outer dististyle(od)a pale yellolvglabrousblade,narrowedat base,broadly dilatetlat near midlength,thence narroved to theobtuseepex.Inner dististyle(id) dilaterlat base,the innerarm short and nearlystraight.
IIab.-F,cuador.
Holotype,6, Yentura, altitude L400 feet, April 8,
1922 (G. I{. H. T'ute).
I iledicatethis speciesto the memory of Juan lgnacio Molina, great pioneerstuclentof the Natural I{istory of Chile.
is readily distinguishedfrom all
Gnophomyiam,olinae
similar regional speciesby the structure of, the malehypopygium.
Gnophomyia(Gnophontyia)porter,i,sp.n.
General colorationblack, pruinose;pleura striped
longitudinallyrvith yello'rv;halteresdusky;rvingstinged
rvith dusky; veins dark bros'n; male hypopygiumrvith
the outer dististylea glabrousslenderrod.
Male.-l'ength about4.2 mm.;rving 5.1.mm.
Rostrumand palpi dark brorvn.Antennae'rvith thescapedark brorvn; flagellum broken. Ilearl uniformly
dark gray.
Pronotumdark browm; anterior lateral pretergites
light sulphuryellorv.Mesonotalpraescutumdark gray,more blackish medially in front; pseurlosttturalfoveae

R e.v,cH . H tsr. N AT. , ANt oXXX|ll lt g2el

L6m. X l .

bFig.

r,g.I

Ftg.J
Explanation of Plate(Syrnbols:b:basistyle; g:gonapophysis;icl:innerdististylc;od:outel dististyle;t:gth tergite).
M AL E H IPOPYGIU M

der.

Fig. L (inolitorttyia (Gnophornyiu)molince,sp. il.
Fig. 2. Gnophonryia(Gnolthont,yia)
porteri, sp. n.
Fig. 3. Gnophornyia(Gnolthomyia) kertisziana,sp. n,Fig. 4. Gnophontyia(Qnst)Tromyia) mcestiti.a,Alexal-t67

Alexander.-spnctns e!' Tttr, (:irrNUs
GNopHorryrA

black,conspicuous;
humeralregiou of praescutum
restr.ictedly obseureyellorv; renrainderof mesonotumblach,sparselypruinose,the posteriorlateral callositiesof thescutallobesobscureyellorv.Pleurachieflyblackishgray,rvith a longitudinalyellorvstripeon the ventral por"tioir,
extendirtgfrom behinrlthe fore coxaewhere it is- poorly
defined,becomingclearerand broaderposteriorlyon th-emeronand metapleura;dorso-pleuralmembraneinfuscated in front clearlight yellorv behind.Halteresdusky.
Legsrvith the coxae'darLb.ol,n, pruinose,the apices6f
the middle anrl hind coxae paler; trochantersbbscureyellow;remainderof legs broln, the outer segmentsso.
me'whatdarker brorvnqtarsi shr,rrt.IMings l'ith a slightdusky tinge;stigmalacking; a vague dark cloud along
yeiy Cu5veins darlr brown. Yc,nation:gs, ending shortly
before4+.Srnfqr from its tjp, about oppositem-idlengthof the oblique Rs;Rq at fork of lCa"i;cell 1sl Mrlong ind
natrow, widened outu'ardly; nr,-cuahout trvo-thirds its
length beyonilthe fork of M.
Abdomenrtark brorvn.Male hypopygium(Fig. 2)
rvith the medianareaof the tergite (bt) i,ioauced'ca"udari
into an elongate-ovallobe, the narrorvapex blackened
and microscopicallydenticulate.ISasistyle(b) relatively
shortand stout. Outer dististyle(od)glabrouJ,uppearin!
as a slenderblackenedrod that narro\ysgraduallyto theobtus-etip, fnner dististyle(id) a short, strongly arcuated, blackenedstructure that bears conspicuous
erectsetae. Gonapophyses(g) asymmetrical,tlere being asingle compressedstructure,the apex blackened,themargin mieroscopicallydenticulate.
Hab. Ecuador.
HoLotype,j, Pallatanga,altitude 4400 feet, March
26,7922 (G. H H. Tate).
I lake great pleasurein namingthis speciesin honor of Dr. CarlosE. Porter,rvhohas donemuch to makeknorvnthe interestinEfaunaof Chile.
By,gyL.J to tlie American speciesof Gnophomyia(Journ.N Y Ent. Soc., 27: 74b-146;1919), G. porieri,
runs to G, lachryntosa
Alexander(Panama),
which differs
in the coloration,venationand structuieof the malehypopygium,especiallythe shapeof the dististyles.

IIT . : V TS TA L J H I L I ] N A D & H I S TO I TI A N A TU R A L

168

Gnophornyia(Gnophonryia)ker.t6sziana,sp. n.
Male.-Lengt about5 mm.;rving 5.2 mm.
Female.-Lengthabout6 rnrn.;rving 5.8 mm.
Generallysimilar to G. (.1), mestilic Alexander,
likervisefrom Peru,differingespeciallyin the structrrleof the malehypopygium.
Wings moreuniformlyinfumed..rvithouta distiuctdarlr crossbandat the coril, as in m.cestitia.
Male hypopygiurn (Fig. 3) rvith the tergal plate (9t) large andbroad,the caudalmargin rvith a very broademarginationthat is fi'ingeclrvith Iong slender comb-like teeth, thisfringe interrupterlby a smalloval median notch; lateralanglesof tergits produceilinto narrorv lobes,each bealiqg a tuft or pencillong spinoussetae.Outer dististyle-ob.
(od)a long narrorvrod, entirel.y glabrous,the apex
tuselyrounded,fnner dististyle(id) much shorter, lessthan one-half the length of the outer, appearinEas adarker gently arcuatedrod, the apox subtruncate,weakly bispinous,
the style rvith long,-outspreading
setae.
Hab. Pera.
Holotype,4, Callarga.
A.llotopotylte,N .
kertdsziana
is namedin honorof the late
Gnaphomyia
Dr, ColomanKert6sz,The specieswas confusedrvith
AI3xander (Ent. Nervs, 25: 208, plate
G (G.) mcestitia
9, fig. 8; 191a).In generalappeal.ance
the trvo flies areq.uitesimilarbut the hypopygialstructureis very dist in c t .
mrBstitia(Fig a) has the ninth tergite
GnophonrEia(9t) similarly large but transverse,the caudal maigin
being very gently emarginate,with an unbroken seriesof comb.likespines,Outer dististyla (od) entirely glabrous,broadlydilatedat base,the mesaledge at end of
the clilatedportiouproducedinto a blackenedspine,thestyle beyorrdthis point narrorvedinto a cur.vetlrod thatis concaveon lower face. Inner dististyle (id) a small
arcuatedrod, the basal portion rvider, the distal half
narrower,Leforeapexrvith a smallobtusetooth.

34tuo