On the Indian species of Trichomalopsis Crawford (Hymenoptera: Chalcidoidea: Pteromalidae)

10 Pages·2001·5.8 MB·

by  P M Sureshan

ON THE INDIAN SPECIES OF TRICHOMALOPSISCRAWFORD
(HYMENOPTERA CHALCIDOIDEA PTEROMALIDAE)
: :
P.M. SURESHAN2ANDT.C.NaRENDRAN3
(With thirty-seven text-figures)
Key words: Chalcidoidea, Pteromalidae, Trichomalopsis new species
The Indian species of Trichomalopsis Crawford are reviewed. These include T. apanteloctena
(Crawford) and T. deplanata Kamijo & Grissell and six new species T. acarinata sp. nov.,
T. nigra sp. nov., T. ovigastra sp. nov., T. thekkadiensis sp. nov., T. neelagastra sp. nov., and
T. travancorensissp. nov. A keytotheIndian speciesofTrichomalopsisis also provided.
Introduction after the petiole and the last before epipygium.
The followingabbreviations arealsoused: OOL
Trichomalopsis Crawford, a species-rich -Ocellaroculardistance;POL-Posteriorocellar
genus of Pteromalidae, is best known from distance; SMV - Submarginal vein; MV -
Europe and North America. As currently Marginal vein; PMV - Postmarginal vein; and
understood,thegenusiscomposedofnearlythree STV - Stigmal vein.
dozen species, largely Holarctic and Oriental The type specimens are kept in the
(Kamijo and Grissell 1982). Graham (1969) collections ofthe Western Ghats FieldResearch
provided the most recent key to European and Station, Zoological Survey ofIndia, Calicut.
North American species. Kamijo and Grissell
(1982)workedontheOrientalspeciesassociated Trichomalopsis Crawford
with rice fields. Boucek (1988) synonymised TrichomalopsisCrawford, 1913,Proc. U.S.
Metadicylus Girault under Trichomalopsis. natn. Mus.,45:251 (typespecies: Trichomalopsis
During our studies on the Indian shirakii Crawford).
Pteromalidae, a large number of specimens Eupteromalus Kurdjumov, 1913, Russk.
belonging to Trichomalopsis were collected Ent. Obozr., 13:12 (type species Pteromalus
mainly from Kerala. The studies revealed nidulans Thomson)
8 species, which include T. apanteloctena Nemicromelus Girault, 1917,Descr. Hym.
(Crawford) and T. deplanataKamijo&Grissell, Chalcid. Var. Observ.,V:4(typespecies:Merisus
already known from the region, and 6 new subapterus Riley)
species. Besides describing the new species, a Metadicylus Girault, 1926. Insecutor,
key to the Indian species of Trichomalopsis is Inscitmenstr., 14: 71 (type speciesMetadicylus
also provided. australiensis Girault)
The terminology generally follows that of
Graham(1969). Inaddition,the antennalfimicle KeytotheIndianspeciesofgenus
segments are numbered FI through F6 and TrichomalopsisCrawford
gastraltergitesT1 toT6,beginningwiththe first
'AcceptedOctober,1998 1. Lowermarginofclypeusincisedmedially(Fig.
ZoologicalSurveyofIndia, 3); head in dorsal view thick, 1.85 to 1.95x as
WesternGhatsFieldResearchStation, broadaslong(Fig. 2);occipitalcarinastrongly
Calicut673002,Kerala,India,
departmentofZoology,UniversityofCalicut, curved medially(Fig. 1)
Kerala673635,India. apanteloctena (Crawford)
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NEWDESCRIPTIONS
— —
Lower margin of clypeus only weakly Gaster more elongated (Figs 9, 30, 37),
emarginate(Figs4, 20); headnotverythick in ovipositor sheaths not strongly protruding as
dorsalview;ifthick(1.9to2xasbroadaslong) above; head in dorsal view different (Figs 6,
thenlowermarginoffaceasinFig.4;occipital 26,32)withtemplesnotmuchrounded;median
carina not strongly curved medially as area ofpropodeum less broad, 1.1 to 1,2x as
above 2 broad as long; plicae more sharp 6
2. Lowermargin offaceon eithersideofclypeus 6. Propodeumwithplicaeverysharp,reachingtip
curved and projected below level of lower ofnucha;nuchamoreconstricted;mediancarina
margin ofclypeus (Fig. 4); head 1.9 to 2x as strong(Fig. 8); T1 ofgasterreachingonly one
broad as long; flagellum in female stout (Fig. third of length (Fig. 9); head in dorsal view
— 5) deplanata Kamijo & Grissell with temples shorter (Fig. 6), length 0.5x eye
Lowermarginoffacenotprojectingbelowlevel length; pronotal collar irregularlymargined ..
oflower margin ofclypeus; head 2 to 2.lx as thekkadiensis sp. nov.
broad as long; flagellumnot stout 3 Propodeum with plicae not sharp as above, at
3 Gastralpetiolealmostaslongasnucha,weakly least slightly incomplete towards the end of
.
sculptured (Figs 13, 16);propodeumwith post nucha (Figs 29, 35); median carina not very
spiracularsulcuswithouttransverseridge; legs strong;templeslonger,0.7xaslongaseye(Figs
with coxae not concolorous with thorax, 26, 32); T1 occupying little beyond or before
yellowish-brownorbrownish-yellow 4 half length of gaster (Figs 30, 37); pronotal
Gastral petiole strongly transverse and collarweaklybutmore regularlymargined... 7
unsculptured; post spiracular sulcus with 7. Gaster (Fig. 30) 1.8x as long as broad and
a distinct transverse ridge; legs with coxae longerthanthorax;T1 occupyinglittlelessthan
mostlyconcolorouswiththorax 5 halflength,withonlyslightmetallicbluegloss
4. Pronotalcollarweaklyandirregularlymargined dorsally;nuchalessconvexinprofile(Fig.27);
or immargined; scape 0.9x eye length; pedicel scape little shorter than eye (0.9x)
plus flagellum almost as long as head width; — travancorensis sp. nov.
T1 of gaster reaching only a little more than Gaster (Fig. 37) 1.6x as long as broad, and as
one third length (Fig. 18); temple length 0.5x long as thorax; T1 occupying little beyond
eyelength;headandthoraxgreenish-blackwith middlewithbrightmetallicblueglossdorsally;
metallic reflection; antennae paler nuchamore convex in profile (Fig. 33); scape
acarinata sp. nov. as long asthe eye neelagastra sp. nov.
—
Pronotal collar weakly but sharply margined
except at sides; scape as long as Description of species
eye; pedicel plus flagellum 0.84x head width;
T1 reaching almost half length of gaster Trichomalopsis apanteloctena (Crawford)
(Fig. 14);templenarrow,length0.4xeyelength; (Figs 1-3)
head and thorax black with little reflection;
antennae darker nigrasp. nov. Trichomalopsis apanteloctena Crawford,
5. Gaster oval; ovipositor sheaths strongly 1911. Proc. U.S. natn. Mus., 39: 618.
protruding (Fig. 24); head in dorsal Eupteromalus parnarae Gahan, 1919.
view with temples rounded (Fig. 19); median Proc. U.S. natn. Mus., 56: 522.
area ofpropodeum broad (Fig. 23); 1.3x as The species can be identified by the
broad as long; plicaenotvery sharp following characters: Lower margin ofclypeus
ovigastra sp. nov. ratherdeeply incisedmedially (Fig. 3); striation
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NEWDESCRIPTIONS
on clypeus extending to lower margin of eyes projecting below lower margin ofclypeus (Fig.
and to malar sulcus; both mandibles with four 4); clypeus with lower margin weakly
teeth; headthickindorsalview, 1.85 to 1.95xas emarginate; both mandibles with four teeth;
broad as long (Fig. 2); occipital carina sharp, in striae of clypeus extending almost to lower
posterodorsalviewstronglycurvedmedially(Fig. margin of eyes and to malar sulcus. Antennal
1). Antennae with combined length ofpedicel torulisituateddistinctlyabovelevelofloweredge
andflagelluminfemale0.8to0.93xandinmales of eyes; scape much shorter than eye length,
0.95 to 1.05x width of head. Pronotal collar almost reaching lower edge ofmedian ocellus;
MV
indistinctly margined. Forewing with 1.55 flagellum stout (Fig. 5); combined length of
to 2.1 x STV. Gaster 1.7 to 2x as long as broad. pedicel and flagellum about0.8x width ofhead.
Material examined: 8 Females, Kerala: Pronotal collar not margined anteriorly.
Sreekariyam (Trivandrum), 25.ii.1989; Propodeumwithmedian carina notvery strong;
7Females, Shertallai, 27.ii.1989; 1 Male,Kappil plicae sharp throughout; spiracular sulcus with
MV
(Trivandrum), 26.ii.1989; 9 Females, 1 Male, a transverseridge atmiddle. Forewingwith
Tenjipalam(Malappuram),?.xi.l988;2Females, 1.45 to 1.85x STV and little longer than PMV.
Attingal, 23.ii.1989; 2 Females, Ernakulam, Gaster ovate, about as long as thorax; 1.3 to
9.ii.1989; 6 Females, Kovalam, 24.ii.1989; 1 1.4x as long as broad; T1 occupying one-third
Female, Ochira(Quilon), 26.ii.1989; 3 Females, length ofgaster or more.
Valayar, 27.ii.1989; 3 Females, Tenjipalam, Material examined: 5 Females, 1 Male,
24.xi.1988; 1 Female, Pamba, 21.xi.1997; 1 Kerala: Ranni, 24.xi.1988; 2 Females,
Female, Kadakattupara (Malappuram), Tenjipalam (Malappuram), ix.1988; 1 Female,
9.xi.l988; 1 Female, Chavara, 22.ii.1989; 2 Thekkady, 14.ix.1986; 1 Female, 1 Male,
Females, Silent Valley, 9.xii.l997; 5 Females, Vayalar, 27.ii.1989, Coll. P.M. Sureshan.
Elamathkavalai (Shertallai), 27.ii.1989; 1 Distribution:India(WestBengal,Kerala),
Female, Kazhakuttom, 25.ii.1989; 1 Female, Japan, Korea, China.
Varkala, 26.ii.1989, Coll. P.M. Sureshan. Biology: Reared in India from Tachimd
Distribution: India (Kerala, Tamil Nadu, puparium onpaddy.
Karnataka,), Bangladesh, Korea, Malaysia,
China, Japan, Taiwan, PhilippinesandFormosa. Trichomalopsis thekkadiensis sp. nov.
Biology: Reared from Cnaphalocrocis (Figs 6-11)
medinalis (Guenee) (Lepidoptera: Pyralidae),
Pelopidas mathias (Fabricius) (Lepidoptera: Female: Length 1.6-2.7mm.(Holotype2.4
Hesperidae) in India. mm). Bluish-green with metallic gloss; bronze-
like gloss on thorax. Antennae with scape and
Trichomalopsis deplanata Kamijo & Grissell pediceltestaceous, flagellumpalebrown. Coxae
(Figs 4 & 5) concolorous with thorax, remainder of legs
testaceous with tips of tarsi brown. Tegulae
Trichomalopsis deplanata Kamijo & testaceous; wings hyaline; veins pale yellow.
Grissell, 1982: Kontyu 50: 84. Head(Fig. 6): Width 1.2xthorax;indorsal
The diagnostic characters of the species view width 2x length and in front view width
are: Length 1.5-2.4 mm. Head in front view 1.3xheight; POL 1.3x OOL; temple length 0.5x
transverse, 1.3x asbroad ashigh; lowermargins eyelength;stronglyconvergingbehindeyes;eyes
of face on either side of clypeus curved and separatedby 1.4xtheirheight;malarspacelength
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NEWDESCRIPTIONS
Figs 1-3: Trichomalopsisapanteloctena (Crawford) Female: 1. Head in posterodorsal view,
2. Head in dorsal view, 3. Head in frontview;
Figs4-5: Trichomalopsisdeplanata Kamijo & Grissell Female: 4. Head in front view, 5. Antenna;
Figs 6-11: Trichomalopsisthekkadiensissp. nov. Female: 6. Head and part ofthorax in dorsal view,
7. Antenna, 8. Propodeum, 9. Gaster in dorsal view, 10. Forewing venation, 1 1. Male antenna;
Figs 12-14: Trichomalopsisnigra sp. nov. Female: 12. Antenna, 13. Propodeum and petiole,
14. Gaster in dorsal view;
Figs 15-16: Trichomalopsisacarinata sp. nov. Female: 15. Body in profile, 16. Propodeum and petiole
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1
NEWDESCRIPTIONS
0.7x eye length; clypeus weakly emarginate Attingal, 23.ii.1989; 1 Female, Parambilpeedika
anteriorly, striated, striae extending near lower (Malappuram), 10.xi.1988; 1 Female,
margin of eyes; head otherwise moderately Elamathkavala(Shertallai),27.ii.1989;2Females,
reticulate, fineronlowerpart. Antennae (Fig. 7) Kazhakuttom, 25.ii.1989, Coll. P.M. Sureshan.
insertedabovelowermarginofeyes;scapealmost Remarks: This species closely resembles
aslongaseye,ahnostreachingjustabovemedian T. shirakii Crawford, but differs from it as
ocellus;pediceltwiceaslongaswide; combined follows: 1. temple length 0.5x eye length (in
lengthofpedicelandflagellum0.9xheadwidth; shirakii temple length one quarter or slightly
clubaslongas2.5precedingsegmentscombined. more of eye length) 2. scutellum longer than
Thorax: (Fig. 6) raised reticulate, length mesoscutum, 1.2x as wide as long (scutellum as
1,7xwidth;pronotalcollarirregularlymargined. long as mesoscutum and slightly transverse in
Mesoscutum width 2.4x length. Scutellum 1.2x shirakii) 3. propodeum without a deep fovea
as wide as long, similarly sculptured as on behindspiracle;nuchahalfaslongaspropodeum
mesoscutum.Propodeum(Fig. 8)relativelylong, andnotwelldefinedin front(propodeumwith a
aboutaslongasscutellummedially;medianarea deep fovea behind spiracle, nucha little shorter
raised reticulate, sides finely reticulate; plicae thanhalflength ofpropodeum and well defined
strong, complete; median carina distinct; nucha in front in shirakii) 4. propodeum with bronze-
highly constricted; callus sparsely hairy. like gloss like otherareas ofthorax(propodeum
MV
Forewing (Fig. 10) with basal part bare; without such gloss in shirakii).
about 1.5xSTVandverylittlelongerthanPMV.
RelativelengthsofSMV,MV,PMVandSTVas Trichomalopsis nigra sp. nov.
37: 13: 12.5: 8.5. (Figs 12-14)
Gaster (Fig. 9): Length 1.6x width;
mm
slightly longerthan thorax; T1 occupying about Female: Length 1.5-2 (Holotype 2
one third length ofgaster. mm). Blackish to bluish-black with slight
Male: Length 1.7-2mm. Similartofemale metallic reflection; scape pale brown on basal
but differs in having short gaster and antenna two third, tip ofscape andremainderofantenna
with longer pubescence. darkbrown. Legstestaceous exceptbase ofhind
Material examined: Holotype: Female, coxae blackish; tarsi darker at tip. Tegulae pale
India, Kerala, Thekkady, 12.V.1986, Coll. T.C. brown; wings hyaline; veins pale yellow.
Narendran & party. Allotype: Male, Kerala, Head: Width 1.2x thorax; in dorsal view
Tenjipalam(Malappuram),24.xi.1988,Coll.P.M. width 2.lx length and in front view width 1.4x
Sureshan. Paratypes: Kerala: 5 Females, height; temple length0.4x eye length; POL 1.3x
Kayamkulam, 21.ii.1989; 5 Females, Varkala, OOL;eyesseparatedby 1.54xtheirheight;malar
26.11.1989; 3 Females, Vayalar, 27.ii.1989; 9 space0.7xeyelength; clypeusanteriorlyweakly
Females Kappil (Trivandrum), 26.ii.1989; 2 emarginate, striate; head otherwise moderately
Females, Neendakara, 22.ii.1989; 4 Females, reticulate;Toruliseparatedbyhalftheirdiameter,
Ranni,24.xi.1988;3Females, 1 Male,Tenjipalam placed only slightly above lower edge ofeyes;
(Malappuram),24.xi.1988;3Females,Emakulam, scape (Fig. 12) as long as eye, reaching level of
9.11.1989; 1 Female, Kovalam, 24.ii.1989; 1 vertex;combinedlengthofpedicelandflagellum
Female, Edakkara, (Malappuram), 24.iv.89; 1 0.84x head width; second anellus a little longer
Female, Sreekariyam, 25.ii.1989; 1 Female, than first, club a little shorter than 3 preceding
Madappally (Calicut), 30.x.1988; 2 Females, segments combined.
400 JOURNAL. BOMBAYNATURAL HISTORYSOCIETY, 98(3), DEC 200
NEWDESCRIPTIONS
Thorax: Length 1.4x width; pronotal by 1.25xtheirheight;mesoscutumtwiceasbroad
collar sharply margined, except at sides, with as long and T1 occupying more than one third
broad smooth strip posteriorly. Mesoscutum length ofgaster in oryzae).
width 2.4x length, moderately reticulate.
Scutellum convex, longer than mesoscutum; Trichomalopsis acarinata sp. nov.
frenal furrow vague. Metanotum with area (Figs 15-18)
betweenhindmarginofscutellumanddorsellum
narrow with several longitudinal carinae. Female: Length 1.3-2.0mm(Holotype 1.6
Propodeum(Fig. 13)withmedianareareticulate mm). Head and thorax dark green; thoracic
as on scutellum; median carina weak; plicae not dorsumwithslightbronze-like gloss; gaster dark
sharp; nucha convex; spiracular sulcus shallow, brown. Scape yellowish-brown, darker at tip;
withouttransverseridge;callusmoderatelyhairy. remainderofantennadarkbrown.Legsyellowish-
Forewing withbasalcell andveinbare. Relative brown with coxae darker. Tegulae pale brown;
lengths ofSMV, MV, PMVand STVas 26: 11 : wingshyaline; veinspale yellowish-brown.
10.5 : 7. Head (Fig. 15): Width 1.3x thorax; in
Gaster: Petiole(Fig. 13)as longasnucha, dorsal view width 2.lx length and width 1.3x
weakly sculptured; gaster shorter than thorax height in front view; POL 1.3x OOL; temple
(Fig. 14), length 1.4x width; T1 occupying length halfofeye length; malar space 0.6x eye
almost halflength. length; eyes separated by 1.3x their height;
Male: Unknown. clypeus striated, anterior margin weakly
Material examined: Holotype: Female: emarginate;toruliplacedonlyalittleabovelower
India, Kerala, Shertallai (Kanhikuzhy), margin ofeyes; scape (Fig. 17) 0.9x eye length,
27.11.1989, Coll. P.M. Sureshan. Paratypes: reaching level ofvertex; pedicel plus flagellum
Kerala: 2 Females, Sreekariyam, 25.ii.1989; 1 almost equal to head width; club a little shorter
Female, Kayamkulam, 21.ii.1989; 1 Female, than 3 preceding segments combined.
Ochira, 26.ii.1989; 1 Female, Chungathara Thorax (Fig. 15): Length 1.5x width;
(Malappuram), 24.iv.1989; 2 Females,Attingal, pronotalcollarweaklymarginedorimmargined.
23.ii.1989; 1 Female, Elamathkavalai Mesoscutum width 2.3x length. Scutellum less
(Shertallai), 27.ii.1989; 1 Female, Kovalam, convex, similarly sculpturedas onmesoscutum;
24.11.1989, Coll. P.M. Sureshan. frenal groove vague. Metanotum with area
Remarks: This species closely resembles betweenhindmarginofscutellumanddorsellum
T. oryzae Kamijo & Grissell but differs from it very narrow with longitudinal carinae.
in having antennal toruli placed only slightly Propodeum(Fig. 16)withmedianarea similarly
abovelowermarginofeyes;scapeaslongaseye; sculpturedasonscutellum; mediancarinaweak;
FI narrower than pedicel; second anellus not plicae not sharp; spiracles oval; postspiracular
much longer than first; malar space 0.7x eye sulcus without transverse ridge; callus
length; eyes separated by 1.5x their height; moderatelyhairy.Forewingwithrelativelengths
mesoscutum width 2.4x length; gaster with T1 ofSMV,MV,PMVandSTVas 14.5 6 5 4.5.
: : :
occupying almost half length (in oryzae toruli Gaster: Petiole (Fig. 16) almost as long
distinctly above lower edge ofeyes; scape 0.83 as nucha, sculptured; gaster (Fig. 18) ovate,
to 0.92x eye length; FI slightly wider than length 1.5xwidth;T1 occupyinglittlemorethan
pedicel; second anellus much longer than first; one third length.
malarspaceonly0.45xeyelength;eyesseparated Male: unknown.
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NEWDESCRIPTIONS
Material examined: Holotype: Female: than eye (12: 11.5), reaching beyond median
India, Kerala, Calicut University Campus, ocellus; pedicelplus flagellum length0.9x head
2.v.1986, Coll. T.C. Narendran & party; width.
Paratypes: Kerala: 5 Females, Kayamkulam, Thorax: Length 1.8x width, in profile
21.ii.89; 3 Females, Neendakara, 22.ii.1989; 1 thoracic dorsum evenly and weakly curved;
Female,Attingal,24.ii.1989; 1 Female,Chavara, pronotal collar anteriorly margined, posteriorly
22.ii.1989; 1 Female, Vazhani, 7.ii.l989, Coll. with smooth strip. Mesoscutum width 2.3x
P.M. Sureshan. length, moderately reticulate. Scutellum wider
Remarks: This species closely resembles than long (1.3x), slightly convex; frenal area
T. nigra (also described) but differs from it by slightlydepressed.Propodeum(Fig. 23)medially
the combination ofcharacters given in the key. 0.9xlengthofscutellum;medianareabroad, 1.3x
Italsoresembles T. oryzaeKamijo & Grissellin as broad as median length, raised reticulate;
thenature ofgastralpetiole,propodeumetc.,but median carina weak; nucha coarsely reticulate,
differs in having pronotal collar not margined; occupyingonethirdlengthofpropodeum;plicae
temple length half of eye length; toruli placed sharp; post spiracular sulcus with a transverse
onlyslightlyaboveloweredgeofeyes;clubmore ridge; spiracles elongateoval; callusmoderately
than twice as long as wide; second anellus little hairy.Forewing(Fig.22)length2.5xwidth;basal
longer than first, and mesoscutum width 2.3x cellwithafewscatteredhairsatdistalend. Basal
length (in oryzae pronotal collar weakly but vein bare; costal cell with a single row ofhairs
MV
clearly margined, except at sides; temple length on upper half, which is complete distally;
one quarter ofeye length; club twice as long as 1.7x STV and as long as PMV. Relative lengths
wide; toruli placed distinctly above lower edge ofSMV, MV, PMV and STV as 30 12.5 12.5
: :
of eyes; second anellus much longer than first : 7.5.
and mesoscutum twice as broad as long). Gaster(Fig. 24): Ovate, length 1.3xwidth
(without ovipositor sheath); ovipositor sheaths
Trichomalopsis ovigastra sp. nov. strongly protruding.
(Figs 19-25) Male(Fig. 25):Length 1.6mm. Resembles
female,butdiffersinantennaebeingslenderand
mm
Female: Length 1.8-2.4 (Holotype2. gaster shorter.
mm). Body dark brownish-green with metallic Material examined: Holotype: Female:
gloss. Antennaebrownwith scape palerinbasal India, Kerala, Vayalar, 27.ii.1989, Coll. P.M.
two thirds. Coxae concolorous withthorax, fore Sureshan.Allotype:Male,datasameasholotype.
andmidcoxaepartlybrownish;remainderoflegs Paratypes: Kerala: 3 Females, data same as that
yellowish-brown.Tegulaebrown;wingshyaline; of holotype; 1 Female, Elamathkavala
veins pale brown. (Shertallai), 27.ii.1989; 1 Female, Akalam
Head (Figs 19, 20): Width 1.2x thorax; in (Trivandrum), 25.ii.1989; 1 Female, Attingal,
dorsal view width 2x length and in front view 23.ii.1989, Coll. P.M. Sureshan.
width 1.3xheight;templelength0.5xeyelength, Remarks: This species closely resembles
rounded posteriorly; POL 1.4x OOL; eyes T. lasiocampae (Graham) but differs from it in
separatedby 1.4xeyeheight; malarspacelength having pronotal collar regularly margined even
0.7x eye length; clypeus striate; head otherwise atsides;medianareaofpropodeum 1.3xasbroad
PMV
moderately reticulate. Antennae (Fig. 21) as long; median carina weak; as long as
insertedbelowmiddle offace; scapejustshorter MV, head and thorax bronze green, flagellum
402 JOURNAL, BOMBAYNATURAL HISTORYSOCIETY, 98(3), DEC 200
NEWDESCRIPTIONS
Figs 17-18: Trichomalopsisacarinata sp. nov. Female: 17. Antenna, 18. Gaster in dorsal view;
Figs 19-25: Trichomalopsisovigastra sp. nov. Female: 19. Head in dorsal view, 20. Head in front view,
21. Antenna, 22. Forewing venation, 23. Propodeum, 24. Gaster in dorsal view, 25. Male antenna;
Figs 26-31: Trichomalopsistravancorensissp. nov. Female: 26. Head in dorsal view, 27. Thorax and gaster
in profile, 28. Antenna, 29. Propodeum, 30. Gasterin dorsal view, 31. Forewing venation;
Figs 32-37: Trichomalopsisneelagastra sp. nov. Female: 32. Head in dorsal view, 33. Thorax and gaster in
profile, 34. Antenna, 35. Propodeum, 36. Forewing venation, 37. Gaster in dorsal view.
JOURNAL, BOMBAYNATURAL HISTORYSOCIETY, 98(3), DEC2001 403
NEWDESCRIPTIONS
not stout (in lasiocampae collar irregularly strongly transverse; T1 making upjust less than
margined except at sides, median area of halflength (0.43x).
propodeum 1.1-1.2xasbroadaslongandmedian Male: Unknown.
carina distinct; PMV slightly shorter than MV; Material examined: Holotype: India,
flagellum stout and thorax brightbluish-green). Kerala, Female, Attingal, 23.ii.1989, Coll. P.M.
Sureshan. Paratypes: Kerala: Calicut: 1 Female,
Trichomalopsis travancorensis sp. nov. 2K7a.zhakuttom, 25.ii.1989; 2 Females, Shertallai,
(Figs 26-31) 27.ii.1989; 1 Female, Vayalar, 27.ii.1989; 1
F28e.male,datasameasholotype;2Females,Kappil
Female: Length 1.6-2.3mm.(Holotype2.3 (Trivandrum), 26.ii.1989; 1 Female, Konni,
mm). Head and thorax dark green with bronze- xi.1988; 1 Female, Aakalam (Trivandrum),
like gloss dorsally; gaster brown with slight 25.ii.1989; 1 Female,Emakulam,9.ii.1989; Coll.
bluishglossdorsallyonT1;Antennaebrownwith P.M. Sureshan; 1 Female, R.E.C. Calicut,
scape testaceous on two third part. Coxae xi.1985, Coll. T.C. Narendran.
concolorous with thorax; middle coxae brown; Remarks:Thisspeciesresembles T. dubius
legsotherwisetestaceous.Tegulaebrown;wings (Ashmead) inheadshape, nature ofantenna and
hyaline; veins pale brown. propodeum, but differs in having scutellum
Head (Fig. 26): Width 1.14x thorax, in moderately convex; propodeum with median
dorsalviewwidth2xlength, infrontviewwidth carina less sharp; gaster longer than thorax (in
1.2xheight; POL 1.4x OOL; temple length0.7x dubius scutellum flattened, propodeum with
eye length, slightly acuminate posteriorly; eyes distinct sharp mediancarina andgaster about as
separatedby 1.4xtheirlength;malarspacelength longasthorax).Closelyresembles T. neelagastrci
0.6x eye length; clypeus with anterior margin sp.nov. (alsodescribed)butdiffersfromitinthe
weakly emarginate. Scape (Fig. 28) 0.9x eye combination ofcharacters given in the key.
length; pedicel plus flagellum length 0.9x head
width; club a little longer than two preceding Trichomalopsis neelagastra sp. nov.
segments combined. (Figs 32-37)
Thorax (Fig. 27): Length 1.6x width,
moderately curved in profile; pronotal collar Female: Length 2-2.4 mm. (Holotype 2.3
sharplymarginedalmostthroughoutwithsmooth mm). Head and thorax dark bluish-green with
stripposteriorly.Mesoscutumwidth2.2xlength, bronze-like gloss; gaster dark bluish-green; T1
moderatelyreticulate. Scutellumwiderthanlong, withstrongmetallicbluegloss.Antennaebrown
lessconvex;frenalareadistinct.Propodeum(Fig. withpalerscape.Coxaeconcolorouswiththorax,
29) with median area 1.2x as broad as long; remainderoflegstestaceous.Tegulaetestaceous;
median carina weak; plicae not reaching tip of wings hyaline; veins pale brownish-yellow.
nucha; nucha moderately convex; callus Head (Fig. 32): Width 1.2xthatofthorax;
moderately hairy; postspiracular sulcus with indorsal viewwidth2x lengthandin frontview
transverse ridge. Forewing (Fig. 31) with basal width 1.3x height; temple 0.7x eye length; POL
cellandveinbare;MV 1.9xSTVand 1.3xPMV. 1.5x OOL; eyes separated by 1.5x their length;
Relative lengths ofSMV, MV, PMV, and STV malar space 0.6x eye length; clypeus with
as 30 14 11 7.5. anterior margin weakly emarginate; head
: : :
Gaster (Fig. 27, 30): Ovate elongate; moderatelyreticulate.Toruliplacedabovelower
length 1.8x width; longer than thorax; petiole margin ofeyes; scape (Fig. 34) as long as eye,
404 JOURNAL, BOMBAYNATURAL HISTORYSOCIETY, 98(3), DEC 2001
NEWDESCRIPTIONS
reaching level of vertex; combined length of (Shertallai), 27.ii.1989; 1 Female, Emakulam,
pedicel and flagellum 0.9x head width. 9.ii.l989; 1 Female,Tenjipalam(Malappuaram),
Thorax (Fig. 33): Length 1.6x width; 16.X.1988, Coll. P.M. Sureshan.
pronotal collar anteriorly margined throughout. Remarks: This species generally
Mesoscutum width 2.2x length. Scutellum less resembles T. caricicola (Graham), butdiffers in
convex, widerthan long, similarly sculpturedas having temple 0.7x eye length; mesoscutum
on mesoscutum; frenal area indicated. width 2.2x length, moderately reticulate; MV
Propodeum (Fig. 35) with median area 1.2x as about 1.8x STV and 1.5x PMV; T1 occupying
broad as long; median carina weak; plicae 0.54 x length of gaster (in caricicola temple
moderatelystrong;nuchaconvex;postspiracular aboutonequarterthelengthofeye;mesoscutum
sulcus withtransverseridge. Forewing (Fig. 36) abouttwiceasbroadaslongandfinelyreticulate;
with MV 1.8x STV and 1.5x PMV. Relative MV about 1.5-1.6x STV and PMV subequal to
lengthsofSMV,MV,PMVandSTVas41 15 MV and T1 occupying rather less than half
: :
10 8.5. length ofgaster).
:
Gaster (Figs 33, 37): Ovate, length 1.7x
width; as long as thorax; T1 occupying 0.54x Acknowledgements
length ofgaster.
Male: Unknown. We are grateful to Dr. K. Kamijo, Bibai,
Material examined: Holotype: India, Hokkaido,Japanforprovidingtypematerialofthe
Kerala, Female: Sreekariyam (Trivandrum), Oriental and Japanese species of Trichomalopsis
25.ii.1989, Coll. P.M. Sureshan; Paratypes: andliterature. P.M. Sureshanthanks the Director,
Kerala: 1 Female, Kayamkulam, 21.ii.1989; 1 Zoological Survey of India, Kolkata and the
Female, Kappil (Trivandrum), 26.ii.1989; 1 Officer-in-charge, Zoological Survey of India,
Female, data same as holotype; 1 Female, Western Ghats Field Research Station, Calicut,
Chavara, 22.ii.1989; 1 Female, Elamathkavala Kerala for facilities and encouragement.
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