" T'4x x x iv , ' 23]

ENTOM OLOGICAL

NE\\ISt7

UndescribedSpeciesof Eriocera and Penthoptera
from Tropical Ameriea (Tipulidae, Diptera).
By Cnanr-ns P. Ar,oxexlen, Amherst, N{assachusetts.
The new species described in this paper were coliecteclby
E. B. and J. H. Williamson atrd W. H. Ditzler, iu \rer-rezueia.
ancl by J. H. \\rilliamson in Peru. Throrrgli the kinclness ofthe collectors, the atttl-rorhas beell permitte<l to retain the t1'pesin his collection.
Ericcera longipennissp. n.
Antetruae short in both sexes; general coloration reddish {ulvous;
rvings long ancl narrorv, brorvn; stigma very smal1 ; abdomen and legs
dark brovyn.
1 5 .5 m m . Ro str u m brow n, the pal pi dark
9 .5 m m .;win g
4.-Length
brorvr.r. Antennee short, dark brorvn' Head fulvous, the anterior partof the vertex more suffused with brown.
Mesonotum reddish {ulvous, the praescutttm with a narrot' and indistinct brown line. Pleura brownish fulvous, the dorso-pleural membranerlark brorvtr. Halteres dark brown, the base of the stem paler' Legs
with the coxae and trochanters testaceous; remainder of the legs black,the bases of the femora paler. Wings long and narrow' strongly tingecl
rvith brorvn; stigma very small, faintly indicated, dark brown; veinsdark brorvn. Venation : Sc extendir-rg a short distance beyond the forkof Rs, Sc2 about opposite the fork of Rs; -Rs very long, much longer
than /?4* 5; basal cleflcction o{ the latter very short; cell illl lacking;veins issrring from cell lst 112 long and slender: basal deflection of cul
just bel,ond the fork of M ; cuz a little shorter thar-rthe basal deflectionofCtA: cell 2nd A very narrow; anal angle lacking'Abdomen dark brown, the hypopl'gium a little brighter'

Holtttype, J , Nlacttto, Janvary 29,IIabitat.-Yenezuela.
1920 (Williamson).
It is possible that Eriocera longipenni.snray more properly beconsidereda speciesol Penthoptera.
Eriocera dimidiatasP. n.

Antennae short in both sexes; general coloration black, the mesonotal
scutellum and postnotum reddish; pleura reddish, marked with black;
rvings with a-strong brownish sufiusion.
11'66-.-Length 10 mm.; wing 13 mm. 9.-Length 12 mm'; wingmm.
Rostrum antl palpi dark brown. Antennae short in both sexes, black.
Heacl brorvnish black, the occiput more brownish; vertical tubercle very
conspicuous,each lateral angle produced into a conical knob'

18NNTOI\{OI.OGICAI-NEWSxxxi v,'23]

IJan.,'2.]

I{esonotal praescutum and scutum black, the scutellum and postnotum.."i;ruptlv rcdtl:sh. Plurra rcddish, the dorso-pleural membrane and aspot o1.l the rncscpistcrnum darl< brou'n. Halteres dark brown.
Legse n t i r c l y b l a c k , i nclu d ir s th c co xa c. Win q s r vith a strong brow n suffus i o n , c l a r k e s t i n t he co sta l iL r r dsu b co sta l cclls; h a sa l and anal cel l s sl i ghtl yp a l e r m e d i a l l y ; v e in s d a .r l<b r o r vn . Ve n a tio u : Ccll Ml l acki ng;ce1l l sf7(2 irregvlarly per.rtagonal; basal deflection of Cal bevond the fork of,1,1,longer than CuZAbclomen black.

ff$rliE N TO MO L O G I C A LNEIVS

t9

Abdomen with the first tergite brown basally; remainder of theabdomenyellow except a broad black subterminalring which includesallof segmentssix and seven,and all of five except the narrow base.
Habitat.-Peru.
Holo\rfe,d, Colonia del Peren6, Camparniento, June 5, 1920 (J. H. Williamson).
Eriocera f ercnensis is related to E. coryti(tcro Alexander, differing in the lack of slender curved horns on the vertical tubercle and the details of coloration.

Hobitat.-Yenezuela. Holotyf c, d , Tachira, Tachira, April8, 1920 (J H and E. B. Williamson and \\r. H. Ditzler).
Allotofot\fe, 9, April ll, 1920. Paratopotl,fc, d, April 4,1920.
The paratl'pe is in the collection of the University ofMichigan.

Eriocera williamsoni sp. n,
General cotoration dark brou'n, the ventral sclerites of the thorax andabdomenyellcrvrr;legs black; wings rvith a pale brown tinge, the stigmaand indistinct seamsalong the cord pale brown; ,Sc comparativelyshort,Scl ending just beyond the fork of Rs,. cell Ml lacking: cell lst Mz
very long and narrow.
6.-I.ength 9.8 mm.; wing 9.7 mm. Rostrum and palpi brownish
black. Antennae with the first scapal segmentbrownish black; secondsegmentbrown ; flagellum broken. Head blackish, gray pruinose; vertical tubercle inconspicuous.
Mesonotum dark velvety brotvn, the praescutal stripes a trifle paler
than the ground-color, the broad median stripe split by a capillary darkline. Dorsal pleurites dark brown, including the lateral sclerite of thepostnotum; ventral pleurites and sternites yellow. Halteres relatively
long and slender, the base broadly dark brown, the distal half of thestem paler brown; knobs dark brown. Legs with the coxae and trochanters obscure brownish yellorv; remainder of the legs black, thefemoral basesvery little paler.
Wings with a pale brown tinge, more suffused in cells C and Sc andat the u'ing-tip; stigmnl and indistinct seams along the cord and outerend of cell lst M2 slightly darker brown, Venation: Rs only a little
longer than R,' Sc comparatively short, Scl ending just beyond the forkof rRs, Sc2'a short distance before the fork; r on R2 about one andone-half times its length beyond the fork and on Rl about two and onehalf times its length from the tip; R2 more than twice R2*3; deflection of R4*5 shorter tlan r-m: cell lsf M2 very long and narrow, rectangular, longer than any of theveins beyond it; cell lfl lacking; basal
deflection ol Cu7 at about two-fifths its length beyond the fotk of. M,
lorrger than Cu.Z alone.
Abdominal tergites dark brownish black, the baseof tergite two paler:sternites obscure brownish yellow.

Eriocera perenensis sp. n.
General coloration yellorv; mesonotal praescutum with four conspicruousdark bron'n stn'pes; a conspicuous basal pit on mesonotal postnotum;
tings
faintly tingcd 'rvith brown, the stigma only faintly
darker;abclomen rvith a broad black subterminal ring.
6 . - - l . e r , g t h 1 5 m m .; win g 1 3 .3 m m . Ro str u m brow n; pal pi bl acl <.
Antennae sho't; scape obscure yellolv; rernainder of antennae brorvnish
black, the base of the first flagellar segment pale. Head obscure yellow;
vertical tubercle inconspicuous, dorsally with trvo rows of black setae; asmall shinl' cicatrice on antero-lateral portion of tubercle.
Pronotnm brown, blackened laterally.
Mesonotal praescutum r,r,ith
four conspicuous, dark brown stripes, the median pair but narrowly
separated; scutum yellow, the lobes largely dark brorvn; scutellum
testaceous medially, dark laterally; postnotum obscure yeltow, darker
posteriorly: on either side between the median and lateral sclerites atbase a large, conspicuous, circular pit. Pleura yellorv, the dorso-pleuralregion narrorvly dark brown.
Halteres dark brorvn, the base o{ thestem conspicuously yellow. Legs with the coxae pale, the base narrowly
and indistinctly darkened; trochanters obscure yeltow; femora brownish
ycllorv, the bases clearer, the apices darker brown; tibiae and tarsi darkbrown.
Wirrgs f aintly tinged with brown; stigma and broad seams along thelongitrrdinal veins indistinctly darker; veins dark brown.
Venation :Sc2 close to tip of Scl, the latter a little the longer; r on RZ less thanits length beyond the fork and on Rl about three to four times its length
frc*m the tip, R1 being bent strongly caudad at r; deflection of R4*.5
subequal to r-m; cell lsl MZ a little narrowed distally, zn tess thanorre-half the outer deflection of M3; ce|t Ml lacking: basal deflectionof Cr1 just bevond the fork of i[, Cu2 and the deflection of Cr1 subequal.

Habitat.-Peru.

Holotype,d,Colonia del Peren6, Cam-pamiento,June 6, 1920 (l. H. Williamson).
This interestingspeciesis namedin honor of the collector,
Mr. JesseH. Williamson,to whom I anr indebtedfor several

1I

20

ENTOlIOI.OGI( 'LNEWSfJan.,'23

The fly inuch resernbles a
Neotropical Tipttlidae.
Penthoftera and it is probable that the two genera rvill need tobe unitecl, a course alreacly followed by Mr. EdrT'ards.
intbrestingPenthoptera candidipes sp. n.
I,{esonotum reddis:hbroln, unmarked; pleura yello"'v with a broad
bro'r,r,nish,clorsal, longitudinal stripe ; legs brown, the tarsi white; on
the posterior legs, tl-reuetatarsi entirely rvhite; wings with a yellowish
tinge: distal sectiotrof R1 about three times r; r-rn connectingwith Rs
at its tip, obliterating the basal deflectionof R4*5.
9.-Length 10.5 mm.; rving 10.3 mm. Rostrum and palpi brown'
A.nter.uralscape yellorv, flagellum dark brown. Head dark brown,
sparselygray pruirrose.
\{esonotal praescutum reddish brown, without stripes, the extrerne
lateral margin narrorvly 1'ellowish; remainder of the mesonotumreddish
brosm, the postuotum more plumbeous. Pleura yellowish, the dorsal
Halteres dark-scleritesrvith a broad brou'nish longitudinal stripebrot,n. I,egs rvith the coxae and trochantersobscureyellow; remainderof the legs dark btorvn, the femoral bases indistinctly paler; terminaltars:rl scgmenfs sno\1lyr'vhite, on the fore and middle legs the white
includesa little more than the distal half o{ the metatarsi; on the hindlegs the tnetatarsi are entircly lvh.te : fore metatarsi much longer
tharr the posterior meta-ta-rsi:forc metatarsi about three and one-halft:mes the remaining tarsal segments;posterior metatarsi less than trvice
the rcnraining tarsai segments; iluer apical angles of the. tarsal segments slightly protiucedand armed r'vith bristles, those o{ the metatarsi
strcl.rser than the others.
\\/ings u'ith a yellorvish tinge; stigma lacking; wing-tip indistinctly
clarkerred;r-cinsdark brown. Venation: Scl ending about oppositeoriethircl the lensth of R213, Sc2 some distance from the tip of .9c1, thelatter alone b.'ing longcr than r'm; Rs long; strongly arcuat€d at origin;r on R2 a little more than its length beyond the fork o'f ft2*3; distal
sectionof Rl about threc times r; deflectionof R4*5 lacking, r-rn con'necting directly with the end of R.r,' ce1l lsf AI2 elongate-rectangular, alacking; basal defleclittle shorter than vcin L[1*2beyord it;cell J1,11
tion of Crl a little more than one-half its length bevond the fork of I/.
Abcloninal tergitcs dark brown; sternites obscureyellow. Ovipositor
rvith the basal shielC obscure yellorv; tergal valves reddish horn color,acicular.
Hcbitat._--Yeneztlela. Holot^'lPe, 9, Tachira, Tachira, April
9 ,l92 O (J. H. and E. B. W illiam s on and W . H . D i t z l e r ) .
The oniy close a111-of the present species is Peithoptera
hatesi, Alexander of the Upper Amazons. The present species
is readily told by the diagnostic characters as given albve.