33

New or little-known slDeciesof exotic Tipulidae (Diptera). XVI
By CHanresP. ArnxnNonn
University of Massachuse
I ts, Amherst,Massachwetts

SyNopsrs
Eight new speciesof the Limoniine genusAntochaOstenSackenare described,allfrom India and chieflyfrom Assam.

The precedingpart in this seriesof paperswaspublishedin 1968(Proc.R. ent. Soc.
Lond.(B) 37 : 4349). I am continuingthe discussionof species
in the genusAntocha
precedingpaper. The materialstreatedare
OstenSacken,as was indicatedin thefrom India and virtually all from Manipur and Kamengin Assam,wherethey werecollectedby Dr. FernandSchmid.
Antoclu (Antocha)angusticellulasp.n.
General coloration light grey, mesonotalscutellum yellowish-grey;antennaerelatively long,exceedingone-third the length of wing; halteresyellow; legs light brown; wings whitened,veinsbrown; Rs long, nearlyequalto Ra+sibranchesof Rs divergent,cell Raoppositethe subobsolete
vein
.rRz
about 4 timeswider than cell Rr; abdomenyellow,tergitesinfuscatedmedially; malehypopygum
with interbaseparallel-sided,
apex irregularlybilobed; gonapophysis
long and slender;aedeagus
narrow, apexunequallybifid.
Male.-I-ength, about 5 mm.; wing, 5 mm.; antenna,about 1.8mm.
Rostrum and palpi brown. Antennaerelativelylong, exceedingone-thirdlength of wing, darkbrown; flagellarsegrnents
elongate,the terminal one about one-thirdlength of penultimate. Headbrown.
Thorax almost uniformly light grey, pretergites,humeral region of praescutum,and scutellum
more yellowish-grey. Pleurabrownish-greyand obscureyellow, the latter including especiallythe
propleura and pteropleurite. Halteres yellow. Legs with coxae and trochanterslight brown;
remainderof legsyellowish-brownto light brown, outer tarsal seglnentsdarker. Wings whitened,
especiallythe prearcularfield; veinsbrown, costaand anterior branchof R^rmore yellowed. Veins
beyond cord with macrotrichia,very sparseon Rs. Venation: Rz ver! faint to scarcelyevident,
oppositer-m; Rs long, nearlyequal to Ra+s,the branchesdivergent;cell Ra oppositevein Rz about
4 timeswider than cell Rri m-cu about one-halfits lengthbeforefork of M.
Abdomen yellow, tergitesinfuscatedmedially, outer 3 segmentsdarker brown. Male hypopygium (fig. l) with the tergite(r) transverse,
posteriorborder very gentlyconvex. Outer disristyle(d) gently narrowedto the obtusetip, outer third blackened. Interbase(f) parallel-sided,the apex
irregularlybilobed,producedlaterallyinto a point, the outer anglea palecircularblade. Phallosome(e) long and slender,graduallynarrowedto the tip; aedeagus(a) narrow,apex
with the gonapophysis
bifid.
unequally

HolotypeJ, Ittoll: Bilo La, Kameng,North East Frontier Agency,5800feet,
10.vi .1961(F. Schmid).
The unusuallybroad cell Rg of the wing is much as in Antocha(Antocha)pachyphallus Alexander, which otherwiseis quite distinct, especiallyin the male hypopygium.
Antocha(Antocha)arjunasp. n.
Sizelarge(wing of maleto l0 mm.); generalcolorationof headand thorax grey,praescutumwith
4 poorly indicatedbrown srripes;antennaeblack; halteresobscureyellow; legsdark brown; wings
patternedlongitudinallyalongthe veinswith palebrownclouds,stigrnadarkerbrown;
brownish-white,
Rs very long, slightly exceedingRa+simale hypopygiumwith tergite transverse,medianregion ofposteriorbordersliehtlyproduced;basistyleextendedinto a stout lobe; dististylessubterminal,outerstyle strongly bent at near mid-length,thenceextendedinto a long terminal rod; phallosomewith
needle-likegonapophyses.

Proc.R. ent. Soc.Lond.(B). 38 (3-4). Pp. 33-39,9 figs. 1969.

34

C. P. Alexanderon exoticTipulidae

Male.-l*ngth, about G7 mm.; wing, 8-10 mm.; antenna,about l'4-l'6 mm.
Female.-I-ength, about 7-8 mm.; wing, 9-10 mm.
Rostrum yellow, palpi dark brown. Antennae relatively short, black; flagellar segmentsoval,
exceedingtheir verticils. Head greyi anterior vertex broad.
Prothorax grey. Mesonotum dark grey, praescutumwith 4 poorly indicated brown stripes, theintermediatepair behind ending far before the suture. Pleura grey. Halteresobscureyellow. Legs
with coxaebrownish-grey;trochantersobscureyellow; remainderof legsdark brown; claws long andslender, the basal spine small. Wings brownish-white, patterned longitudinally with pale brown
clouds over virtually all veins, most conspicuouson Rs, cord, Cu and anals, least evident on M andbasesof anal veins;stigmadarker brown; veinspale brown. Macrotrichiaof veinsrelativelysparse,
occurring on outer ends of distal sectionsof Ra+s and M*2. Venation: R2 conspicuous,in transverse alignment withr-m; Rs very long and nearly straight, slightly exceedingRa+si m-cu shortly
before fork of M.
Abdomen, including hypopygium, dark brownish-grey,basal sternitessometimesmore obscureyellow. Male hypopygium (fig. 2) with the tergite (r) transverse,posterior border gently convex, thecentral fourth farther produced into a low flange, its border subtruncate; tergal vestiture abundant
but small and delicate, virtually restricted to the base of the central projection; a narrow central
thickening and more diffuse margins along anterior border, the posterior margin not thickened.
Basistyle(D)conspicuouslyproduced into a stout lobe, dististylessubterminal; mesalfaceof style witha low protuberance. Outer dististyle (d) strongly bent at near midJength, the long terminal rod
blackened,tip subacute;inner style only narrowly united with the outer, relatively narrow, the slightly
expanded outer third with abundant relatively short setae. Phallosome (p) including needleJike
gonapophyses(g) and the narrow aedeagusthat is subtendedon proximal three-fourths by a broad
flange. Interbase(i) not well developed.

feet,7.viii.
Holotype6f,Iwon: Dakwani,Pauri Garhwal,Kumaon,9300-11,000
severalof1958(F. Schmid). Allotopotype Q, pinned with type. Paratopotypes,
both sexes,5-7.viii.1958(F. Schmid).
is Antocha(Antocha)unicollisAlexander,of Nepal,which
The mostsimilarspecies
pale brown cloudsin certain
has the wing patternquite different,with conspicuous
the outer
cells,asin cell R beneathRs. The hypopygialdetailsaredistinct,especiallylobeof the basistyleandthe outerdististyle. In A. (A.) arjunathe lobeof thebasistyle
Alexanderor unicollis. Theseis longerand more slenderthan in eithernebulipennlsof high altitudesin the Himalayas,wheretheyareconarecharacteristic
threespecies
spicuousby their largesizeandthe subterminaldististylesof the hypopygium. A.(A.)
fortidensAlexander,from high altitudeson the China-Tibetborder,similarlyis allied,differingrn the hypopygialstructure,includingthe outer dististyle.

Antocha (Antocln)

attenaata sp. n.

General coloration of mesonotal praescutum dark brown medially, sides very broadly yellow;
posterior scleritesof notum and the pleura yellow, patterned with dark brown; knobs of halteresdark brown; wings pale brownish-grey,stigma slightly differentiated; outer longitudinal veins fromRe to Ma inclusive with macrotrichia; male hypopygium with posterior border of tergite shallowly
emarginate;phallosomic scaffolding with the interbaselong, gonapophysisa long slenderblade, tip
obtuse; apex of aedeagusextendedcaudad beyond level of other phallosomic elements.
Male.-Length, about 5 mm.; wing, 5'3 mm.; antenna,about 1'5 mm.
Rostrum and palpi not visible in the mounted unique type. Antennae relatively long, black;flagellar segments long-oval, terminal one short-oval, about one-half the penultimate. Headbrownish-grey.
Pronotum light yellow. Mesonotal praescutumdark brown medially, sidesvery broadly yellow,
the darkenedpattern more intenseon the widenedanterior half, paler behind, lateral stripesscarcely
indicated; scutum yellow, each lobe solidly dark brown; scutellum brownish-black, parascutella
yellow; mediotergitebrownish-black,sidesnarrowly yellowed,pleurotergiteyellow above,lowerthird
infuscated. Pleura clear light yellow, including the dorsopleural membrane; dorsal sternopleurite
dark brown, including also the fore coxae. Halteres whitened, more evident basally, knobs darkbrown. Legs with middle and posterior coxaeand all trochantersyellow; remainderof legsmedium
brown. Wings pale brownish-grey,prearcular field whitened, stigrna slightly differentiated; veins
pale brown. Macrotrichia of longitudinal veins beyond cord unusually abundant, including Rs to
Ma, inclusive. Venation: anterior half of vein Rs semi-atrophied,in transversealignment with
r-m; m-cu shortly before fork of M.

C. P. Alexander on exotic Tipulidae

35

Abdomenlight brown, seventhsegmentdarker,outer segments
more yellowed. Male hypopygum (fig. 3) with posteriorborderof tergite(t) shallowlyemarginate.Outerdististyle(d) brown,
shapedlike a boomerang,
tip obtuse;innerstyleslightlylonger. Phallosomic(p) with thescaffolding
interbase(i) long, its tip obtuse;outer gonapophysis(e) a long slenderblade,the apexnarrowly
obtuse;innerphallosomicstructurenarrowlytriangularin outline,inctudingthe long slenderinner
apophyseswith narrowlyobtusetips and the aedeagus
with narrowlateralflanges.

Holotype $, INnu,: Sirhoi Kashong, Manipur, Assam, 7500 feet, 11.vii.1960(F. Schmid).
The generalstructureof the male hypopygiumof Antocha(Antocha)attenuatais
most similar to that of A. (A.) quadrirhaphisAlexander, differing especiallyin thephallosome,includingthe narrow bladeJikegonapophyses,
which in the latter species
are definitelyspinous.

( ,

I

k

WA

Fras. l-S.-Male hypopygiumof: (l) Antocha(Antocha)angusticellulasp. n.; (2) Antoclw (Antoclu)
arjuna sp. n.; (3) Antocha(Antocha)attenuatasp. n.; (4, 5) Antocha(Antocha)dafla sp. n. (a,aedeagus,D, basistyle;d, dististyle;g, gonapophysis;l, interbase;p, phallosome;t, tergite.)Proc.R. ent. Soc.Lond.(B). 38 (3-4). Pp. 33-39,9 figs. 1969.

2S

36

C. P. Alexandet on exotic Tipulidac

Anocha(Antoclw)daflosp.n.
Mesonotalpraescutumlight yellow with 4 light brown stripes; halteresclear light yellow; legs
yellow; wings whitened with certain of the veins conspicuouslyinfuscated; abdomen brownishyellow, the outer segmentsdark brown; male hypopygiumwith posterior border of tergiteproduced
into 2 slenderpoints; both the outer and inner pairs of gonapophyses
long and spine-like.
Male.-I*ngth, about 5-5.5mm.; wing, 5.ffi.3 mm.; antenna,about 1.0-1.2mm.
Female.-I*ngth, about 5.5 mm.; wing, 6.5 mm.
Rostrum and palpi brown. Antennae brown; flagellar segmentsoval, progressivelyshorter
outwardly. Head light brown.
hothorax yellow. Mesonotalpraescutumlight yellow with 4light brown stripes,the intermediatepair narrow, endingsomedistancebeforesuture,lateral stripesextendedacrosssutureto include thescutal lobes; median area of scutum and parascutellalight yellow, scutellumlight brown; mediotergite brownish-yellow,the sidesand pleurotergiteyellow. Pleura chiefly yellowed,sternopleurite
light brown. Haltereschiefly light yellow. I-egs with fore coxae brown, lsnr4ining coxae morebrownish-yellow;remainderof legsyellow. Wings whitened,prearcularand costalfieldsrestrictedly
light yellow; a very restrictedbrown pattern that includesthe stigma and certain veins, including
especiallyRr, Ra+s,Cu and 2nd A, the adjoining membranescarcelyinvolved; remainingveinspaler,thosebeyondcord and the outer half of Ist A very pale yellow, scarcelyvisible againstthe ground.
Abundant trichia on outer two-thirdsof distal sectionof vein Rr+sand ot M*z andMs. Venation:
Rs long, subequalto or about one-fifth longer than Rl+si Rz in virtual transversealignment with
r-m; m-cu about one-sixthits length beforefork of M.
Abdomenwith basalsegments
obscureyellow,slightlydarkenedat the sutures,sixth and succeeding
segmentsdark brown. Male hypopygium(figs.4, 5) with the tergite(l) narrowly transverse,
posteriorborder with nearly the central half slightly more convex,at either end of this producedarea with aslenderpoint. Outer dististyle(d) darkened,gentlycurved,in type (fig. a) with apexshallowlyforked,
the point slender,with a small lateral tooth; in the paratype(fig. 5) with the style simple. Outergonapophysis(g) a long slenderspine. Phallosomicscaffolding(p) with conspicuousinner gonapophysesthat are only a little shorterthan the outer pair. Aedeagus(a) terminatingin a smallshieldshapedplate to appearcapitate.

Holotype 6, INpn: Rahung, Kameng, North East Frontier Agency, Assam,
650G7000 feet, 17.vii.196l (r'. Schmid). Paratypes.-l? (allotype), Ankaling,
Kameng,2100feet,12.iii.196l; ld, Brukpatarnchen,
Kameng,4000feet,l7.iii. 196l;
ld 19, Dirang Dzong, Kameng,5300feet,9-ll.iv.196l; lg, Gery, Pauri Garhwal,
Kumaon, 6890 feet, l6.viii.l958; 16, Tarsali, Pauri Garhwal, 6000-7000feet,
6.v.1958(ail f'. Schmid).
The speciesis readily told by the coloration of the wings and the hypopygial
structure. Other regional membersof the genus include Antocha (Antocha)parvicristata Alexander and A. (A.) quadrirhap&r's
Alexander, which have the hypopygia
somewhatthe same,especiallyin the similarity of both pairs of gonapophyses.All
thesespeciesdiffer especiallyin the conformationof the tergiteand in all detailsof theouter dististyleand phallosome.
Antocha(Antocha)exilistyla sp. n.
Rostrum light yellow; mesonotalpraescutumbrownish-yellowwith a conspicuousbrown central
stripe, confluent with lateral darkenings;knobs of halteresbrown; wings whitened,stigmamedium
brown; malehypopygiumwith the outer dististyleunusuallylong and slender,narrowedgraduallyto
the acutetip; both the outer and inner gonapophyses
appearingas sclerotisedhorns.
Male.-Length, about3-3.5mm.; wing,4.24.5 mm.; antenna,about 1.0-1.1mm.
Female.-I*ngth, about 4.5 mm.; wing,4.5 mm.
Rostrum light yellow; palpi pale. Antennaerelativelyshort, brown; flagellarsegmentsoval, theterminal one subglobular. Head brown.
Pronotum and pretergitesyellow. Mesonotalpraescutumbrownish-yellowwith a conspicuous
brown centralstripe,confluentwith the lateralpair, humeralregionyellow; scutumyellow,lobesdark
brown; posterior scleritesof notum including the pleurotergitechiefly dark brown. Pleura yellow
with a brown longitudinalstripe,ventralsternopleuritepale. Haltereswith stemyellow,knob brown.
Legswith coxaeand trochanterslight brown,posteriorpair cleareryellow; remainderof legsbrownishyellow; claws with a long slender basal spine. Wings whitened, especiallythe prearcular field;
stigmaoval,mediumto dark brown; veinsbrown,palein theprearcularfield,costayellowed. Macrotrichia on veins Rs, distal sectionsof Rn+s,M*z and Ms and on Me. Venation: Rz and r-m intransversealignment;m-cu beforefork of M, in type about three-fifthsthe length of latter.

37

C. P. Alexanderon exoticTipulidae

v

ll
,

!

,

Frcs. 6-9.-Male hypopygium of: (6) Aftqclu (Antocha) exilistyla QP.n.; (7) Antocla (Antocha)
slycera sp. n.; (8) Antocha (Antocha) latifurca sp. n.; (9) Antocha (Antocha) longispha sp. n.
(a aedeagus;b, basistyle;4 dististyle;& gonapophysis;i interbase;p, phallosome;s, sternite.)
Abdominal tergitesdark brown, sternitespaler. Male hypopygium (fig. 6) with the outer distis$e (d) unusually long and slender,narrowed gradually to the acute tip; inner style obtuseat apex.
Phallosome (p) with both the outer and inner gonapophyses(sr) appearing as sclerotisedhorns, theformer shorter; aedeagus(a) relatively narrow, apparently with a lateral branch near outer end.

Holotype3, INpn: Yongphu, Manipur, Assam,4500 feet, l2.viii.1960 (f.
Schmiil.
Antocha(Antocha)exilistylais generallysimilarto A. (A.) peracataAlexanderbut
is quite distinctin hypopygialcharacters.
Antocha(Antocha)glycerasp. n.
General coloration of mesonotal praescutum buffy-yellow with 3 dark brown stripes; antennae
relatively short, brownish-black, legs and knobs of halteres brown; wings whitened, with a conspicuousbrown pattern that includesbroad seamsover the anal veins; abdomendark brown; malehypopygium with posterior border of tergite truncate, without lobes; interbaseand both dististyles
with obtusetips; outer gonapophysislong and slender;aedeagusshort, the outer third bent at a rightangle.
Male.-l-ength, about 5'5-6'5 mm.; wing, 6'5-8 mm.; antenna,about 1'2-l'5 mm.
Fettule.-l*ngth, about 7 mm. i wing, 7 mm.

38

C. P. Alexanderon exoticTipulidae

Rostrum yellowish-brown,sparselypruinoseabove; palpi black. Antennaerelativelyshort,brownish-black;flagellarsegments
oval,the outeronesprogressively
longer,exceeding
their verticils.
Headbrown,front andanteriororbitslight grey;anteriorvertexbroad,exceeding
4 timesthediameterof scape.
Cervicalregiondark brown; pronotal scutumwith centralpart brown, remainderbuffy-yetlow.
Mesonotalpraescutum
buffy-yellowwith 3 dark brownstripes,the broadcentralareavaguelydivided
by a sliehtlypalerbrown interspace;posteriorscleritesof notum chieflybrown,centralpart of scutum
morepruinose,posteriorcallositiesof scutallobesand parascutella
moreyellowed. Pleurabrown,
sparselypruinose. Haltereswith stemwhitened,apicesof knobsbrown. Legswith coxaedarkened
outwardly,tips and inner facesyellowed;trochantersyellow; remainderof legsbrown; transverse
palelinescharacteristicof the genusveryconspicuous.Wingswhitened,with a conspicuous
brown
patternthat includesa largespot in cell R beneathRs, with a weakdarkeningat baseof cell; cord,
outer end of cell /sf Mz, and.broad seamson both anal veins,includingthe outer half of Ist A;
additionalpalerbrown marginalcloudson all outerveins;stigmalong-oval,brown; prearcularfield
whitened,includingthe veins,lsrnainingveinspalebrown,darkerin the cloudedportions. Macrotrichia on outer sectionsof veinsRl+s and M*2. Venation: Rz and r-m in nearlytransversealignment; ttnu nearly one-halfits lengthbeforefork of M.
Abdomen,includingthe hypopygum,dark brown. Male hypopyglum(fig. 7) with the tergite(r) transverse,
centralhalf of posteriorbordertruncate;a broad transverseband of long pale setae
removedfrom the margin,longerand morenumerouson the sides. Ninth sternite(9s)large,withabundantcoa$esetaeon aboutthe outer third; in the holotlpe the posteriorbordersubtruncatetovaguelytriloted, in the paratypefiguredwith posteriormarginmoreevenlyrounded. Dististyles(d)nearlyterminal;outer styleblackened,graduallynarrowedand curvedoutwardly,tip obtuse;innerstyleslightlylonger,the depression
for receiptof the outer styleconspicuous.Phallosome(p) with
interbase(i) relativelylong, tip obtuse;outer gonapophysis(6') long and narrow, sinuous,the tip
paler;innergonapophysis
appearingasa largeincurvedlobeon eithersideto form a bridgeacrossthe(a) straightat base,the outer third bentat a right angle,the genitaltubesclosely
midJine; aedeagus
approximatedand apparentlywith a sineleterminal orifice.
Holotype 6, Ittpl.q,: Gey, Sikkim, in Rhododendron association, 12,000 feet,

20.v. 1959(F. Schmid). Paratypes.-l9 @llotype),Yagtang, Sikkim, I 1,650feet,
17.vi.1959;ld 19,Kalep,Sikkim,12,100
feet,18.vi.1959;ld lQ, Tanggu,Sikkim,
12,860feet, l9.vi .1959; ld l?, Yangtang,with allotype; 23, Yumtang,Sikkim,
lz,l$ feet,27.vi . 1959;I d 19,Badrinath,
PauriGarhwal,Kumaon,10,000-lI ,000feet,
19.vi.1958;
1d 19,Dakwani,PauriGarhwal,93Gll,000feet,5-7.viii.l958;ld l?,Kanol, Pauri Garhwal,8530feet, l9.viii.1958; ld lQ, Kulara,Pauri Garhwal,in
Rhododendron
association,
12,000feet,3.viii. 1958(all F. Schmid).
(Antocha)glycera
Antochais readily told from other generallysimilar regional
specieshaving patternedwings by the hypopygialstructure,including the truncatedposteriorborder of the tergite and the dististyles. Such speciesinclude A. (A.)
nebulipennls
Alexanderand A. (A.) unicol/rsAlexander,which have the hypopygial
detailsdistinct,includingespeciallythe tergiteand both dististyles,and the darkened
wing patternlessextensive.
Antocln (Antocha)latifurca sp. n.
Size small (wing of male 5 mm.); generalcoloration of body yellow, vertex of head light brown;
anterutae, halteres and legs yellow; wings whitened, with a very pale brown pattern that includes
the stigma and seamsover cord and outer end of cell /sr Mz; Rz nearly as long as Rz+s,m-cu about
its own length before fork of M; male hlpopygium with outer dististyle short, widened outwardly,
forking into 2 broad arms, iruter style dilated on outer half; interbaseand gonapophysespale, shortand broad; aedeagusslender,of distinctiveconformation.
Male.-Length, about 4.5 mm.; wing, 5 mm.
Rostrum light yellow, palpi very slightly darker. Antennae yellow; flagellar segmentsoval.
Head with the broad anterior vertex light brown, posterior parts and occiput light yellow.
Pronotum light yellow. Mesonotal praescutum very pale yellow on anterior half, posteriorscleritesof notum more orange-yellow,without distinct pattern. Pleura yellow. Halteresuniformly
yellowish-white. I-eS with coxae and trochanterspale yellow; remainder of legs uniformly yellow.
Wings whitened, with a very pale brown pattern, including the stigma and seamsover origin of Rs,
cord and outer end of cell 1sr Mz; veins pale, only slightly darker in the patterned areas. Macrotrichia on distal sectionsof veins Ra+s,Mt+2, Ma andMa. Venation: Rz pale, placed some distance
before level of r-m, ne.arlyas long as vein Rz+si m-cu about its own lengfh before fork of M.

C. P. Alexanderon exoticTipulidae

39

Abdomen almost uniformly yellow, the hypopygrumslightly darker. Male hypopygium (fig. 8)
with the outer dististyle(d) pale, short, gently arcuated,widenedoutwardly, forking into 2 arms,eachabout aswide asthe narrowestpart of stem,upper arm more rounded,lower arm triangular in outline;
inner style dilated on distal half, outer margin arched. Phallosome(p) including the oval pale interbases1f) and the unusually short gonapophyses(g), as figured; phallosomicarea including a broad
glabrous central plate; aedeagus(a) slender,of unusual conformation, as shown, before the shortapical point narrowed and archedinto a curved spine.

Holotype $, INoI^q.:Chapai, Kameng, North East Frontier Agency, 700 feet,
26.ii. 196r \F. Schmid).
Other regional small-sizedspecieswith uniformly yellow legs include Antocha(Antocha)perattenuataAlexander,A. (A.) perstudiosaAlexander, A. (A.) scelesta
Alexander, and A. (A.) studiosaAlexander,all with the wings differently patterned
and with the hypopygialstructurequite distinct.
Antocha (Antoclw) Iongispincsp. n.
Size small (wing of male 4 mm.); mesonotalpraescutumyellow, with three conspicuousbrown
stripes,the lateral pair widely separated,posterior scleritesof notum and the pleura variegatedyellow
and dark brown; halteresand legsyellow; wings whitened,stigma light brown; .Rzplacedfar before
level of r-m, nelrrly equal to Rz+s,Rs about one-half longer than basal sectionof Ra+s,m4u nearly
its own lenglh before fork of M; male hypopygiumwith outer dististylevery unequally bifid at apex,
the axial projection an unusually long spur, outer arrn short and rounded; aedeagusdepressedflattened,apex shallowly bidentate.
Male.-I-ength, about 3.3mm.; wing, 4 mm.; antenna,about 0'65 mm.
Rostrum yellow, palpi brownish-black. Antennae short, scapeyellow, pedicel brownish-black,flagellum paler brown; proximal flagellar segmentssuboval,progressivelylonger outwardly, verticils
short. Head yellow.
hothorax and pretergiteslight yellow. Mesonotalpraescutumyellow with 3 conspicuousbrown
stripes,the broader central area ending far before the suture, Iateral stripes widely separatedfrom
the central area by very broad interspaces;centresof scutal lobes dark brown, remainder yellow;
scutellum brown, parascutellayellowed, postnotum dark brown, the interpostnotal suture narrowly
yellowed. Pleura yellow, with conspicuousdark brown areason anepisternumand sternopleurite.
Halteresclear light yellow. Legs with fore coxaeextensivelydark brown, apicesyellow, remaining
coxae and all trochantersyellow; remainderof legs darker yellow; claws with a major basal spine.
Wings whitened, prearcular and costal fields more clearly so, stigma light brown; veins very pale
brown. Venation: Rz far before level of r-m, ne.arlyequal in length to Rz+gi Rs about one-halflonger than basal sectionof Ra+sinr-cu nearly its own length before fork of M.
Abdominal tergites and hypopygium brownish-yellow, sternitespaler yellow. Male hlpopygium(fig. 9) with the outer dististyle(d)very unequallybifid at apex,the axial point an unusuallylong spur,
its tip narrowly obtuse,outer projection short and rounded. Phallosomicscaffolding(p) with apex
of interbase(f) a long narrow pale blade; outer gonapophysis(g) long and flattened,surfaceback
plate, its apexshallowly bidentate.
from the subacuteapexcarinate;aedeagus(4) a depressed-flattened

Holotype6f,INon : Tangkhul,Hundurg,Manipur,Assam,3000feet,18.viii.1960(F. Schmiil.
The most similar speciesis Antocha lAntocha)perstudiosaAlexander,which
differsevidentlyin hypopygralstructure.
(Manuscript received6th August, 1967)

Proc.R. ent. Soc.Lond.(B). 38 (3-4). Pp.33-39,9.figs. 1969.

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