Heterospilus belokobylskiji, 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 : 57-60

Heterospilus belokobylskiji sp. n. Figs 1-2

Holotype

female. U.S.A., "MARYLAND:Calvert Co. [;] 2 mi E Prince Frederick [;] 38°33'3.83"N, 76°33'3.09"W [;] 14.v.-16.v.2007 SEL Hym Unit [;] pan trap, transect6 treatment B" (USNM).

Paratype.

1 ♂ same data as holotype except 38°32'57.95"N, 76°33'1.43"W, transect8 treatment W (USNM).

Diagnosis.

The vertex is smooth except a pair of small strigulate areas posterolaterad the lateral ocelli in Heterospilus belokobylskiji ; the vertex is entirely strigate to strigate-coriaceous in Heterospilus hemipterus , and it is entirely coriaceous in Heterospilus vincenti . The face is smooth in Heterospilus belokobylskiji ; the face is at least partially strigate in Heterospilus hemipterus , and it is smooth mesally and coriaceous laterally in Heterospilus vincenti . The frons is partially strigulate in Heterospilus belokobylskiji ; the frons is entirely coriaceous in Heterospilus vincenti . The mesopleuron (excluding subalar groove, precoxal sulcus, and posterior mesopleural furrow) is weakly coriaceous with some areas nearly smooth in Heterospilus belokobylskiji ; the mesopleuron is at least partially strigate in Heterospilus hemipterus . The hind wing stigma of the male is located slightly basad the middle of the wing in Heterospilus belokobylskiji ; the stigma is located at the wing apex in Heterospilus vincenti . Transverse grooves are absent on T3 in Heterospilus belokobylskiji ; a crenulate transverse groove is present on T3 in Heterospilus hemipterus . The head (excluding mouthparts and antenna) is brown in Heterospilus belokobylskiji ; the head is yellow in Heterospilus vincenti .

Description.

Female ( Fig. 1 ).

Body length. 2.28 mm.

Head. HL 0.81 × HW, HW 1.09 × TW, FW 1.92 × FH, EL 1.00 × EH, MSH 0.80 × EH, F1L 0.85 × F2L, PMPL 0.45 × F1L; antenna broken at eighth flagellomere; mandible with two teeth, tooth closest to labiomaxillary complex shorter than other tooth, setiferous; malar space smooth, setiferous, malar suture absent; clypeus with roughly apical 1/2 setiferous and basal 1/2 glabrous; face smooth, glabrous mesally and setiferous laterally; frons partially strigulate and partially smooth, sculpture strongest in depressions dorsad antennal sockets, glabrous except one to two setae along margin of eye; vertex mostly smooth but with pair of small strigulate areas posterolaterad lateral ocelli, setiferous; ocelli present but small (cf. Heterospilus striatus Muesebeck & Walkley); gena smooth, setiferous; occiput smooth, glabrous except pair of setae ventrally on both sides of head.

Mesosoma. ML 2.83 × MW, ML 1.97 × MH, MW 0.70 × MH, SSL 0.50 × SSW; pronotal collar without transverse carina, anterior portion rugulose and posterior portion smooth mesally and crenulate laterally, anterior and posterior portions both glabrous except setiferous along anterior margins, pronope absent, lateral portion of pronotum (including pronotal groove) rugose, roughly setiferous along margins and glabrous mesally; notauli complete and meeting posteromesally, 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 and pair of crenulae adjacent to carina; scutellar disc weakly coriaceous, glabrous except five setae along lateral and posterior margins; propodeum strongly carinate, setiferous, carinae forming hastate areola mesally, sculpture within areola areolate-rugose, mesolaterally with transverse carina dividing propodeum into roughly basal and apical halves, dorsal lateral carinae dividing basal 1/2 into median and lateral areas, median area with weak indication of coriaceous sculpture and lateral area areolate-rugulose, apical 1/2 areolate-rugose; subalar groove crenulate; precoxal sulcus present in roughly anterior 1/2 of mesopleuron and crenulate, posterior 1/2 of mesopleuron without impression but with rugosities extending to mesocoxa; posterior mesopleural furrow crenulate; mesopleuron (excluding subalar groove, precoxal sulcus, and posterior mesopleural furrow) weakly coriaceous with some areas nearly smooth, setiferous except glabrous area dorsomesally roughly between subalar groove and posterior mesopleural furrow to level of episternal scrobe; metapleuron areolate-rugose, setiferous; metacoxa with anteroventral basal tubercle.

Forewing. Brachypterous, extending to posterior margin of T2 (including fringe); hyaline; stigma present anterodistally, posterior margin difficult to differentiate from R1 vein; with following veins complete and tubular: C+SC+R, M+CU, 1-1A, 1RS, 1M, and 1CU; (RS+M) and m-cu veins complete but nebulous resulting in distinct 1st discal cell; one wing with 3RS vein minute but tubular and clearly differentiated from stigma and R1 vein.

Hind wing. Brachypterous, extending to posterior margin of T2 (including fringe); hyaline; basal and subbasal cells enclosed by tubular veins, veins enclosing cells differ in width and degree of sclerotization; R1 vein tubular; M+CU vein shorter than 1M vein.

Metasoma. T1L 1.15 × T1W; subcylindrical; ovipositor with minute teeth ventrally, EOL about 2.23 × T2+T3L; ovipositor sheaths setiferous, setae increasing in density anteriorly to posteriorly; T1 costate, dorsal carinae extending posteriorly about 3/4 length of tergum, setiferous, dorsope present; T2 costate, setiferous; transverse groove between T2+T3 weakly impressed, smooth; T3-T7 smooth, setae forming single transverse row in middle or posterior 1/2 of tergum; T8 smooth, setae in no apparent pattern.

Color. Head (excluding mouthparts and antenna) brown, mouthparts whitish yellow except mandible yellow with teeth brown, scape and pedicel yellow, flagellum yellow proximally transitioning to brown distally; mesosoma orangish brown except pronotum and propleuron yellowish brown; wing venation tan; legs yellow; T1-T2 entirely yellowish brown, T3-T5 mostly brown with posterior edge slightly darker but all with some irregular yellow coloration, T6 yellow anteromesally but otherwise yellowish brown, T7 yellowish brown, T8 yellow.

Male

( Fig. 2 ). As in female except:

Body length. 2.04 mm.

Head. HL 0.78 × HW, HW 1.06 × TW, EL 0.93 × EH, MSH 0.73 × EH, F1L 0.93 × F2L, PMPL 0.38 × F1L; antenna with 17 flagellomeres; frons glabrous except a few setae along margin of eye.

Mesosoma. ML 2.03 × MH, MW 0.72 × MH; pronotal collar with anterior portion coriaceous and posterior portion rugulose, scutellar sulcus with median longitudinal carina and pair of shorter longitudinal carinae adjacent to median carina; propodeum with basal and dorsal lateral carinae distinct, basal median area rugulose, remainder of propodeum areolate-rugose, areola (if present) obscured by surrounding sculpture.

Forewing. Extending nearly to end of T3 (including fringe).

Hind wing. Extending nearly to end of T3 (including fringe); stigma slightly basad middle of wing, subelliptical; basal and subbasal cells enclosed by tubular veins except delimited distally by stigma, basal cell delimited ventrally by M+CU vein, 1M vein absent; R1 vein tubular.

Metasoma. T1-T2 costate-rugose; T2 sculpture extending into transverse groove between T2+T3; T3 smooth except band of carinulae anteromesally.

Color. Mesosoma brownish yellow; T1-T2 entirely brownish yellow, T3 brown with posterior edge slightly darker except yellow anteromesally, T4 brown with posterior edge slightly darker, T5-T6 yellow with posterior edge brown, T7-T8 yellow.

Host.

Unknown.

Etymology.

This species is named in honor of Dr. Sergey A. Belokobylskij for his contributions to braconid systematics and for providing information on brachypterous and apterous doryctines critical to completion of this article.

Figures

Figures 1 - 2. Lateral habitus images of Heterospilus belokobylskiji, scale bars = 1.00 mm. 1 Female 2 Male.