Heterospilus vincenti Kula, 2011

Kula, Robert R., 2011, Two new brachypterous species of Heterospilus Haliday (Hymenoptera, Braconidae, Doryctinae) from the Nearctic Region, Journal of Hymenoptera Research 21, pp. 53-64 : 60-63

Heterospilus vincenti Kula sp. n. Figs 3-4

Holotype

female. U.S.A., "MARYLAND:Calvert Co. [;] 2 mi E Prince Frederick [;] 38°33'4.19"N, 76°33'3.96"W [;] 30.v.-1.vi.2007 SEL Hym Unit [;] pan trap, transect5 treatment B" (USNM).

Paratype.

1 ♂ same data as holotype except 38°33'15.72"N, 76°33'8.73"W, 14.v.-16.v.2007, transect4 treatment R (USNM).

Diagnosis.

Heterospilus vincenti can be differentiated from Heterospilus belokobylskiji using the diagnosis for Heterospilus belokobylskiji . The vertex is coriaceous in Heterospilus vincenti ; the vertex is strigate to strigate-coriaceous in Heterospilus hemipterus . The face is smooth mesally and coriaceous laterally in Heterospilus vincenti ; the face is at least partially strigate in Heterospilus hemipterus . The frons is coriaceous in Heterospilus vincenti ; the frons is strigate Heterospilus hemipterus . Transverse grooves are absent on T3 in Heterospilus vincenti ; a crenulate transverse groove is present on T3 in Heterospilus hemipterus . The head (excluding mouthparts and antenna) is yellow in Heterospilus vincenti ; the head is dark reddish brown except yellowish brown along eye and ventrally in Heterospilus hemipterus .

Description.

Female ( Fig. 3 ).

Body length. 2.36 mm.

Head. HL 0.77 × HW, HW 1.09 × TW, FW 1.83 × FH, EL 1.00 × EH, MSH 1.00 × EH, F1L 0.93 × F2L, PMPL 0.31 × F1L; antenna with 17 flagellomeres; mandible with two teeth, tooth closest to labiomaxillary complex shorter than other tooth, setiferous; malar space coriaceous, setiferous, malar suture absent; clypeus with roughly apical 1/2 setiferous and basal 1/2 glabrous; face smooth mesally and coriaceous laterally, glabrous mesally and setiferous laterally; frons coriaceous, glabrous except a few setae along margin of eye; vertex coriaceous, setiferous; ocelli present but small (cf. Heterospilus striatus ); gena coriaceous, setiferous; occiput smooth, glabrous except pair of setae ventrally on both sides of head.

Mesosoma. ML 3.58 × MW, ML 2.27 × MH, MW 0.63 × MH, SSL 0.57 × SSW; pronotal collar with transverse carina, anterior portion smooth and posterior portion rugose, anterior and posterior portions both glabrous except setiferous along anterior margins, pronope absent, lateral portion of pronotum (including pronotal groove) rugose except small coriaceous area dorsally, roughly setiferous along ventral and posterior margins but otherwise glabrous; notauli complete to transscutal articulation and separated by carina posteromesally, more strongly impressed anteriorly than posteriorly, bearing a few weak crenulae; mesoscutal midpit absent; mesoscutum (excluding lateral margin and notauli) coriaceous, setiferous along margins and notauli; scutellar sulcus with median longitudinal carina; scutellar disc coriaceous, glabrous except pair of setae laterally; propodeum strongly sculptured, setiferous, with basal and dorsal lateral carinae distinct, basal median area coriaceous, basal lateral area rugose, remainder of propodeum areolate-rugose, areola absent; subalar groove crenulate; precoxal sulcus complete to mesocoxa, more strongly impressed anteriorly than posteriorly, transitioning from crenulate anteriorly to rugose posteriorly; posterior mesopleural furrow crenulate; mesopleuron (excluding subalar groove, precoxal sulcus, and posterior mesopleural furrow) coriaceous, setiferous with setae largely confined to margins, subalar groove, and precoxal sulcus; metapleuron areolate-rugose, setiferous; metacoxa with anteroventral basal tubercle.

Forewing. Brachypterous, extending to end of mesosoma (including fringe); hyaline; stigma absent; venation limited to tubular vein along anterior margin complete to wing apex and vein along posterior margin transitioning from nebulous proximally to tubular distally and bending anteriorly near wing apex to intersect vein along anterior margin.

Hind wing. Brachypterous, extending to end of mesosoma (including fringe); hyaline; basal cell distinct but open, SC+R vein spectral distally; subbasal cell enclosed by tubular veins; SC+R vein and 1M vein converge distally to form thickening roughly width of two veins.

Metasoma. T1L 1.14 × T1W; subcylindrical; ovipositor with minute teeth ventrally, EOL about 3.28 × T2+T3L; ovipositor sheaths setiferous, setae increasing in density anteriorly to posteriorly; T1 costate-rugose, dorsal carinae blending with ground sculpture posteriorly, setiferous, dorsope present; T2 carinate-rugulose, setiferous; transverse groove between T2+T3 absent, T2 and T3 indicated by inconspicuous break in sculpture; T3 carinulate in roughly anterior 1/2, smooth in roughly posterior 1/2, setiferous with most setae forming transverse row in middle of tergum; T4-T8 smooth, setae forming single transverse row in middle or posterior 1/2 of tergum.

Color. Head (excluding mouthparts and antenna) yellow, mouthparts whitish yellow except mandible yellow with teeth brown, scape and pedicel yellow, flagellum yellow proximally transitioning to brown distally; mesosoma yellow with pronotum and propleuron slightly lighter; wing venation and legs yellow; T1-T2 entirely yellow, T3-T4 yellow with posterior edge brownish yellow, T5-T8 entirely yellow.

Male

( Fig. 4 ). As in female except:

Body length. 2.38 mm.

Head. HL 0.80 × HW, HW 1.11 × TW, FW 1.92 × FH, EL 0.94 × EH, MSH 0.94 × EH, F1L 0.88 × F2L, PMPL 0.29 × F1L; antenna with 20 flagellomeres; gena weakly coriaceous, sculpture barely discernable in some areas; occiput glabrous except a few setae ventrally on both sides of head.

Mesosoma. ML 3.48 × MW, ML 2.29 × MH, MW 0.66 × MH; pronotal collar without transverse carina, anterior portion coriaceous-rugulose and posterior portion rugulose; notauli weakly impressed but complete and meeting posteromesally, bearing a few rugosities; scutellar sulcus with pair of crenulae; scutellar disc bearing three setae; propodeum largely obscured by hind wings but strongly sculptured, basal carina distinct, outer-most dorsal lateral carina indistinct, inner-most dorsal lateral carina (if present) obscured by hind wings, visible portion of basal median area coriaceous, remaining visible portions areolate-rugose, areola (if present) obscured by hind wings.

Forewing: Additional tubular vein located above vein along posterior margin, additional vein arising at base of wing and terminating into vein along posterior margin roughly at its midpoint.

Hind wing: Base of wing membranous with minute veins along anterior and posterior margins; apex of wing with stigmalike swelling bearing flap of wing membrane at distal end of swelling.

Metasoma: T1L 1.26 × T1W; T1 carinate-rugose; T2 carinulate-rugose; transverse groove between T2+T3 weakly impressed, T2 and T3 also indicated by inconspicuous break in sculpture; T3 carinulate-rugose in roughly anterior 1/2, smooth in roughly posterior 1/2; T4 with a few crenulae anteriorly but otherwise smooth.

Color: T3 roughly anterior 1/3 yellow and posterior 2/3 brown, T4 yellow anteriorly and brown posteriorly (partially retracted under T3).

Host.

Unknown.

Etymology.

This species is named for the author’s son, Vincent Marion Kula.

Figures

Figures 3 - 4. Lateral habitus images of Heterospilus vincenti, scale bars = 1.00 mm. 3 Female 4 Male.