382
r$41

Curran, Diptera of Kartobo, British Guiann

303,,,,-Posthumeralbristle situated ne&rerthe sideof the mesonotumthantt'
the presutural; if absent, the color metallic green or blue.
Cer,r,rpnonro.r,n.
Posthumeralbristle situated farther from the side of the thorax
than the presutural.
.. .SencoprracrDAg.
.il.--Headwith a conspicuousmovable neck; eyesvestigial or wanting.
SrnnsLrner.
Head deeplysunk into the thorax, the neck not conspicuous;eyes
well developed,roundor oval.
. .HrpponoscrDAE.
TrpurroEs(Crane-flies)
Bv Cnenl,ns P. Ar,nxewonn
Eolorusiaspecies
Mrceuenr, 1846,'Dipt. Exot.,'Suppl.I, p. 17,Pl. rr, fig. 2.
Tipulalongitarsis

One female of a speciesclose to longitar,szs
Macquart, Kartabo,)lorch L9, L922.
It is impossibleto determine female specimensof most generaof
Tipulidaewith any degreeof accuracy.
Eolorusia schineri, new nameTipuln elutc Scnrxpn, 1868, 'Novara Reise,' Dipt., p. 35 (not Tipi,a eluta[oew'1863).

One female of a speciesclose to schineri but possibly distinct,
lobeled"Tropical ResearchStation, No. 20657."
Ozodicera(Diheraclouus)guianensis,new species
The subgenusDiheraclonzsincludesthe following describedspecies:
api,cal;isMacquart, f urnipennis Loew, panammsis Alexander, tri gufr,ata
Alexander,and xa'nthostoma
Loew. O. extensaAlexanderis intermediate
htweenDihetaclonusand typical Ozodicera.
Length, about 24 mm.; wing, 20 mm.
The presentspeciesis very closeto trilytttata Alexander of Brazil, agreeingin thepdeyellowish-browncoloration of the scapal and alt branchedflagellar segments,thequadrivittatepraescutum and the general features of the wing and hypopygium.
Itdiffers in thewings havingonly a small du-"kyseamat r-ar (Fig. 11) and in thestruetureof the male hypopygium. The ninth tergite (Fig. 12) has the caudal margin
deeplysplit by a median noteh, the lateral lobes thus formed relatively long andslender,their tips na,rrowand subacutely obtuse. Caudal prolongation of the combinedsternite and basiatyle (Fig. 13) produced into a relatively long and slender
flatteuedblade, the apex of which is somewhatexpandedgnd extends ventrad into a304

Bulletin Arnerican Museum of Natural HistorylVol. LXVI

short prolongation. rn tigurtnta the lobesof the tergite (Fig. ra) are shorter,
more
broadly and obtuselyroundedl caudal prolongationof ine'sternite andbasist],le(Fig. f5) shorter,broader,not producedventradat apex.
rlor-orrrn.-Male, Kartebo, Bartica District, April 16, rg22, atlight (TropicalResearchStation,N. y. 2o6l. Soc.,No. Z2Lg4).
Ton5rpremna longipes Fabricius
Tipululmryipes
Franrcrus,lg0b, ,Syst.Antl.,, p.2F.

A brokenmalespecimen,I{artabo, March LB,lg24.
Limonia (Rhipidia) domestics (Osten Sacken)
Bhipidiad.omp-sti,nosrnx secrinN, lg5g, proc. Acad. Nat. sci., philadelphia,p. 208.

Kartabo, December g-14, Lgz}; some were taken at trap-lanterns.

dEpiphra,gmavaria Wiedemann
Iimrnbia aaria W rnoauexx, 1828,, Ausser. Zwetl.,' I, p. S73.

'aOnefemale,Kartabo, March Z,lg22.

-pol5rmera (fotymera) pulchricornis
Alexander
Polynnercpuk'hricornis
Ar,oxeNoEn,rgl4, Trans. Amer.Ent. soc.,xL, p.25r,:dT

Kartabo, DecemberlT, LgzO.
n"io"u". kaieturensis Alexander
Erioero,ka,ietwensisAr,ExeNonn, 1914,psyche, XXf, p. 41, pl. rv, fig. 1.

Kartabo, one female,septemberT, rg22; one additional female,
June 1.
Lecteria armillaris Fabricius
TipulaamiUorisF-rBnrcrus,
180b,,Syst.Antl.,' p. 26.
One male, Kartabo, No. 20b68.
Gnophomyia arcuata dexander
GnaplwnytaatclraloAr,pxeNorn, 1914,Trans. Amer. Ent. Soc.,XL, p,244.

- One female, I{artabo, December 14, 1920. The speciesw&s
describedfrom Bartica, Januar5r4-28,lgl4.
Teucholabis melrnocepbala Fabricius
Tipulo melanwe*phala
Feenrcrus,1294,,Ent. Syst.,' Iy, p. 24L.

A broken specimen,I(artabo, August 16, L922.
This specieshas beenpassingas melanocephala
but without a cornparison with the type.

I.rtL

nXI,'rtE;.;

It deEt.-#-'

l#'E

1e341Cu,rran,Apbra ol Kartabo, British Guiana

305

Teucbolabis.species
jocoscALExANnnn,Tnrcholabfu
lgl3, Ent. News,XXIV. p. rt<10.
A single female of a speciesnear jocosaAlexander, Kartabo, Dqcember 14, 1920. The speciesjocosa was described from Bolivia.
Erloptera (Mesocyphona) parva Osten Sacken
EiopteroparDa
osrENsecrcx, 185g,proc.Acad.Nat. sci.philadelphia, p. 227.

Kartabo, December14, lgh0.

;

Erioptera (nrioptara) apiciatba Alexander
Erioplero(Erioptoa)upicialh Aucxexoon,1g21,proc. Acad.Nat. sci. philap.70.
delphia,
One female specimen, Kartabo, April 6, 1g24.
The specieswas describedfrom a single imperfect specimentaken at'Tetr6(Ega),Brazil, December29, 1glg, by Herbert S. parish. From thedimensionsof the type as comparedwith this secondspecimen;it is nowevident that the type was a male. The present specimenis describedas allotype
Fpueln.-Length, about3.5mm.; wing,aboutB.4mm.
AgSrees
closelywith the typc male,clifferingin the followingcharactere:
ffuutellum broadly ond conspieuouslylight -vellow,with a dark baqal triq"gle.
l.ongitudinal silver-vstripe on the thoracic pleura more difru.qe. The dark bandson
tlrelegssomewhatnarnrwer,not conspicuouslywider than the white interepoces.
Tbe head and holteresof the type were broken and thesestructurer may bedescnbedfrom the preJeot specimeu. Rostnun and palpi dsrk brown. Antennae
dark brown throughout. Head in front light yellow, behind clear silvery-gmy.
Ealteresuniformly white.
Ar,r,o'r.rrp.-Female,Kartabo, April O, lg?4.

Styringomyis a,merica,aaAlexander
Styrn4onllioameicatw ALrxelorn,lgl4, Trans. Amer. Ent. Soc., XL, p. 2Bl.

Kartabo, December12, 1920.
.f6le1hinn brasilieasis Westwood
Linnobdorhgnchwbrasilifficie
TVuerwooo,lEllt5,Aun. Soc. Ent. trtance, p. 683.

Onefemale,Kartabo, November9, 1920,at traplautern.

['v"\14tl\_.a" /, t - - '\T5

fis. l t. Wing ef Ozxlicrrro(Dihezrklonus\ gvianenas, n,cwnpqeies.
Fir I J.
hyplpygirrm Df (). (D.) grtianm,,it' sinth ,ergrrc, dnrt^l nsgrctllol.
lit. l:1, -Vale h-vyxrptgium $f O- (D) guians.a1le;opr..1of cternirc-h$ietyle;rt?rl lglx.rt,.
Fir. l{. '\t$le h)'Frlrl'Krum of (). (o.) triguuutuAlennrfer:
niuth terxirc, tlnrnrf
rFt.
Frx.I 5. \tultr hylr,lyl-vgiumof 0. (D.) lrigutrnht'
rrrpx of 3l3rgite-basisr,.vle;
bonl u{}er.t.
Iir. tr;. P n,Khu'htoJinp(,rwl;acoWillisr,on. lVinr"
l'ir. t;. ('hironomunocArot tVrlle.y (n. ,9p.).
Mnlu genitalio.
Irir' f s. ( frirorru"*rr
fumqragwallr:v ('. sp.). Mole
rk. | 1). ('thj'"n?rrrrr.$duktyh.r\lialte,v (n. $p.). IftaleKeuitrlie.
genitrrlir.
.
l'rnrtron:(. -C'tlr^;$'q= Srrheogtt: R r Hryliru: V - )t*lir:'!\2i,Cju =( lrrhitue; -I - -{ual }-cin