Replintetl.

t't'tlttt
V liUlr,utlXot, THE BnOoltlrX

EX'IOuOI,OGI('.\LSOt'tl:Tr*'o l . L III, N o . :1,1r p.48- 5:1. Apr il, 1958'

UNDESCRIBED SPECIES OF NEMATOCEROUSPART V.:T
DIPTERA.
By Cnenlrs P. Ale xexoen, Amherst, Ilass'
The preceding part tlnder th_isgeneral title appeared in 1956
(Bul. Brooklyn"e"t. Soc.51: 75-81). At this tinre I arrrclescribtrvo of Blepharocericlae,ing two 1.r.* ip..ies of Ptychoptericlaear-rcl
thE types being preserveiti" i'1' co-llectio' rvith the exception oforr. rp..ies in t|. X"t.tral Histor)' Mttsetttrr,Vietttla.

PTYCHOPTERIDAE
Ptychopteramatongoensls'n. sP.
trIesothoraxyellou', the praescutumand scutal lobes patterned
rvith opaqueblact<in the fornr of confluentstripes; rostrum.l'ellorv;
lrlack:A'terr'ae rvith scapearrclpeclicel1'ellou-,flagelltttttbrou'rlish
blue; fetnora vellou', the1;osteriorpart of i.,eo,lbiilliant iretallic
ii1r, ,r"rrorvl), clark llrolytr : g'irrgs obsc.ttre1'ellclq'.tfie prearcttlar
barrcland costal regions lllore strongh; so, rving tip and a narro\\:lergites orange. the thircl aucl stlcover corcl brorvn; abdor-ninal
e\ceedingtergites lvith the posterior borders cleepblacl<,nlore
tensive o., ih. sttbterurin"i ..gttreuts; ovipositor and genital segment orange.
Fernalc;Length abottt 10-11 urtn.;rving 10-11 tnur'
Rostrun Vellow; palpi ollscttrevelloq', the ottter seglllellt trrore
peclicel)'€llou', flagelltrnr
infuscatecl. Antennie ivith t5e scapear-rcl
brownish black. the first segtrletrtsotlleu'hatpaler; flagellar segarrteurral're'ts cylindrical, lorger"thethirr the 'erticils. Frort arrd
slti.r'fossaeoralrge-\.eflou', posterior Part oi hea<lllrilliart
nretallicblue.
prorroturrrvel611-. Ilesorrotal llraescuturttu'ith attterior ctttl
cetttralarcl lateral lnrders orange,the renrainclerof rlisk u'ith itltlackepeclarea, represerrtirtgt[e ttsttal strilles, cr.ssittg.-,1-ruqu.
are tq'trt|e su.tureartcl irrcluclingthe sctttal lolles u'here t|ere
atr<lu'equal areas oll eachlolle: sctttelltttrtorapge: p<-xttrotttrrt
infuscated. Legs $'ith ulJ coxae
1rl.rri" light vello$,. Halteres
dqk
and trochanters y'ellou'; feurora vellou', 1l]. tips narrou'I1'ti|iae
brorvn, the amouirt subeclualot-tull legs ( 1 ll1l1l.or less) :andand tarsi clark brorv'r. \t'i'gs obscurJ1'ellorv,t5e prearcttlar* Contribution No. 1290from the Errtonrologicalf,altoratorv ot
the University of Nlassachttsetts'

'{/r'ir. le58Bulletin of the Brooltll,pEntornological Societlt

49

costal fields more strongly so; a conspicuouspale brown pattern
including a narro\\' lmncl at cord, narro\4'eclbeirincland beconring
obsoleteat the bend of Cubitus; wing tip broacllypale brown. extending basadto beyond the forks, which. vvith-the veins beyoncl
them, are restrictedlyseamedwith still darker brown; postlrior
border as far basadas vein Znd A vaguelyclarkened;veins brown,
mg1e yellorveclin the lrrighteneclfielcls. Venation: Rs short,obliqu.e,meetingR, * ., at a sharp angle,basalsectionof R, *., short
to very short: raclialfork nruch deeperthan the medial one.
Abdonrinal tergites orange. the first ancl second segmentsrestrictedlvdarkenedmedially,the third and succeeding
teigites withposterior borders narrorvly cleepblack, the amount increasing on
the fifth ancl sttcceedingsegmentsto form a ring; ovipositor ancl
preceding segmentsorange.
H o.ltitot: Tanganyika.
- Holotype: 9, Ugano, Matongo Highlands, 1500-1200meters,
Septenrber28, 1938 (F. zintrner). Paratyfe, ?, Songea, ll00
tneters,April 28-May 2, 1936 (H. Zerny).
Most similar to Ptychoptera africono Alexancler.of southern
Nigeria,differing conspicuously
in the colorationof the mesonotlm.
I am indebtedto Dr. Max Beier, curator of the EntomologicalCollections of the vienna Natural History Museum for theloan of the important Zerny materials fron-r the Matongo Highlands.
Bittacomorphella pacifica, n. sp.
Charactersgenerally as in Bittocornorphello so.chenii,cliffering
espe_ciallyin the structure of the male hypopygium.
^ Male: Length allout 9-11..5nrnr.;wing 7-9 ttrt.; antennaabou.t
8.5-9 mnl.
Female; Length abont 9-9.5 mrll.; wing 7.5-9 nlm.
Antennaeof nrale verv long, approxinratelyequal to the wing;
Tape pale brown, the larger pedicel yellolv, flagellum black;flagellar segurentsvery long-cylindrical. N,Iesonotilpraescutunr
with four distinct black stripes; posteriorscleritesof notum blacke_ned,sparselypruinose. Pletrraheavily light gray pruinose,nlore
darkeneclventrally. Legs with the fenrorabrowniih _vellowbasally,passing into clarker brolvn; tibiae lrrou'n, the tips darkerred;basitarsi black, in caseswith the extrenre tips rvhitened; tarsal
segmentstwo and three sno\r'y white: in sacheniithe tips ofbasitarsi broadly white. Male hypopygiunrwith ttre tergite iarge,
posterior border shallowly er-narginate,
the lateral lolrcs inrall, ob-

50

I'ttt
B t i l l e t i r to f t h e R r o o l i l v t rE n t o r t t o l o q i c oSl o c i c / l ' r - t t t 'tuse, rvith long setae. Tergal anlls slightly ntore slerrderthan insa.chenii.Dististyle relativelv sletrder,as cornparedrvith sochen'ii.
Phallosorneclistinctive.the longer or tertnirral poirrt a lllackerrecl
blacle, narro\\'ed to the shallorvh' biclentate apex. the lower tooth
microscopically dentictrlate, eslleciallv ol1 the ventral edge. In
sachettiithephallosonreterrnirratesitr a slenclerspine. its tip actttelv
pointed.
H obitat: \\rashingtou, Oregon, northern California.
Holotyfe: 3,Nfotrrrt Itainier, \\'ashington, 4,700 feet, Jtiv 21,
19-t0 (Henrl' Torvnes). Porotoltotyfes. &?, 2,700 feet, July 8,
1940: 4,700 feet. Jull' 21, t9+0 ( Hetrrv Torvrres). Porottltcs, 3,Peavitre Riclge, NIcNIirtrrville,Oregott, Jtrne .5, 1945 ( KenrrethFencter): 3, Davtotr, C)regotl, Septettrber 19. 1946 ( KerrnethFerrder) : 10 d?, Castle Crags State Park, Shasta C'o.,California,
2,000 feet, Julv 6-8, I 953 ( Alexancler) : 1 &, Castle Crags, irr
Darlinqtonia bog. 3,000 feet, Julr' 8, 1953 (Alexander).
Tlre cliscoveryof rr-ralespecitttensof Bittacomorl''hellosachenii'(von Rorler) shorvsthat rnaterial frottt the urore northerrr Pacificstateshitherto rleterminedas beirrgthis speciesactttallv are clistinct
alcl are clescrilrcclabove. The third rvestern Nearctic species oftlre genuS,B. fenderiana Alexatrcler,is even lttore distinct in thestructure of the nrale hypopl'gium. The hypopygittttr of the present
fly was figureclearlier (Arner. Nlidl. Nat. 42:273, fig.2,as sachenii;Iglg), in co,lrltarison rvith the salne structttre for B. fendcriana.
As far as known at present, B. sacheniiis more sottthern irr its
range, being restrictecl to the Sierra Nevada in California ancl
Nevacla, frorn the gerreral vicinity of l-ake Tal-roesottthwarcl.

BLEPHAROCERIDAE
Dioptopsisarizonic?,fl. sP.
Geleral coloration of thorax ochreous yellow, ttre praesctttttm
anteriorly patternecl rvith brolvnish black: autennae u'ith scapearrcl pedicel yellow, flagellurn black ; wings with a faint dtr.sky
tinge, the rvhitened netlike lines conspicttous;Rs relativelv long,nearly trvice r4n; basal section of R, very short to punctiforrrr;
male hypopygium with the tergal lobes broacl, olltusely rottndecl
at tips;-out"t dististyle verv extensive,widened outwardly, thelow basal lobe rounclecl,lvith allttndant stout black setae.
Mole: Length about 5 l11lr1.
; rving 6 nlm. ; antenna atrottt 1.3
n1m.

r1r'ir.r'05sBullctiu of tha Broolill,y Entomoloqicol
Socic/v

5r

Rostrtttn and palpi yellorvishbrou'n. Antennae rvith scapeand
pedicel vellorv, flagellurn black. Head light grat, darker behind,includingthe ocellartubercle;upper divisionof the eye very poorlv
differentiateclfrotn the nrajor lon'er clivision,long and narrow,including about four or five rorvs of onrmaticlia,its r,l'idthless thanthe cliameterof the ocellartubercle.
Thorax ochreousyellow, nredianarea ir-rfront ancl the hunreraltriangles brorvnish black. heavilv gray pruinose. Pleura yellow
with gray prttirroseareas. Legs u'ith the coxae arrcltrochanters
vellow, renrainclerof legs brou'nish vellor,v,tarsi clarker. \\Iings
rvith a faint cluskytinge. the u'hite netlike lines contrastingu'ith
the grottntl' r'eitrs pale trrowrr. Ver-ration:Rs relatively lorrg.
arcuatecl,trearly trvice r-m ; ltasal section of R, \rerv short toptrnctifonn; llasalsectiorrof M ,+2 unusrrallylong, exceedingfourfifths Jll; basalsectionof.Il[,,*a lorrg and sinuous.
Abclorrrinaltergites light browrr, variegatedwith paler. Malehypnpygitrrnwith the tergal lobeslrroad,olrtuselvroundedat tips.
Outer clististyle very extetrsive, u,iclenecloutrvarctly, the outerarrgleobtuselyroutrded,the low llasal lobe rounded, with abunclantstottt black setae. Phallosornewith the gonapophyseslonger ar-rcl
a little stouterthan the penisfilanrents.
Hahi,tat; Arizona (Pinal Courrtv).
Ilolotype: 3, Worknran Creek, Sierra Ancha, M"y 3, 1947 (H.
and M. Townes).
The discovery of a Blepharocericlin Arizona sou.th of theColoradoRiver lvas of unnsual irrterestsince it becanrethe mostsotrtherlyknown speciesin the Rocky Mourltajrrregion,Blelthorocera si,onensis
Alexancler,of southerrrAffi^
forrnerly holclingtlris position. The nearest regiorralallies are Diolttoltsis morhii(Garrett) and D. setluoiarum(Alexander), which cliffer irr size,
detailsof venation,and rvhereknou'rr,irr the structureof the malehypopygium.
Apistomyia anamalaiensis,n. Sp.
Thoracic dorsum hroaclly orange in fror-rt,blackenedbehind:
abdominal tergites with the nrecliarrregion alrrrostcontinuouslv
orange-yellorv;eyes of nrale very large, the upper clivisionmore
extensivethan the lower.
Male; Length, excluding rostrturr,abotrt .5 nln-I.;wing 5 rnm.;
rostrunr about 2 nrm.
Rostrum lllack. Antennae 10-segmentecl,
black throughout;first flagellar segrnentslightly longer than the second and third52

Bulletin of thc Broohlyn EntomoloqicolSocic/1'r'ot'I'ttl

combined; terminal segmentoval, a little longer ancl stouter thanthe preceding two. Eyes yerv large, the upper clivision, comprised of larger onrmatidia,l-noreexterrsivetharr the iower one:eyes broacllycontigtrotrs,the verv redtrceclposterior part of head
black.
Prorrotunrblack. Mesonotalpraescuturrland scuturnorange.thescutal lobes an<l confluent areas on posterior lateral parts of thepraescutunrblack: nricllineat scutu.nru'ith rlarrow clarkenedextensious clirecteclcephalacl:scutellunr lrtrff-r'vellolr'. concolorous
black.
u'ith the dorsopleuralnrernbrarre;postnottunver\/ recltrcecl.
Pleura chiefly light gray pruinose, leaving clarker areas on thesternurn and nreron, possibly catrsedb1' rublling. Halteres withbaseof stenr light brolvn, the succeedingpart yellou'ed,outer halfyelblack. Legs u,'ith the coxae prtrinose; trocharrterstestaceou.s
low; femora obscureyellow, the outer errclsllroadly darker; tilliae
ancl tarsi dark brown. \\'ings rvith a weak dusky tirrge, thesecondarynetlike verrationstill clarker.corrspicuous:veins llrown.
those of costal field still darker. All veins stronglv developed
throtrghout; in trilineato, basesof the \/eins pale to subatrophiecl.
Anal arrgleof wing rouncleclan<l only mocleratelvdeveloped.
Alxlominal tergitesbrownishblack laterally,the sidesof the ffrore
proxirnal segnrentsgray pruinose; rnicl-clorsalregion of tergites
two to six, inclusive, corlspicuouslyorarlge-yellow,alntost continuous, being broken narrowlv at the posterior borclers of thesegments;sterniteswith a basalgray triangular area,the sides ofthe posterior half broadly browrrishblack; hypopygium black.
Habitat: South India.
Holottpe: J, Cinchona,AnarrralaiHills, 3,500 feet. April 1957
(P. SusaiNathan).
A!>istont\io,anamalaiensisis cluite distinct from A. trilineata
Brunetti, of Assam and the easternHinralayas,cliffering eviclently
in the coloration of the lndy and wings ancl in the strtlcture ofthe eyes. The conspicuouslybrighteneclpattern of the thorax andabdomenof the presentfly is noteworthy.