Heterospilus (Heterospilus) setosus, Tang, Pu, Belokobylskij, Sergey A., He, Jun-Hua & Chen, Xue-Xin, 2013

Tang, Pu, Belokobylskij, Sergey A., He, Jun-Hua & Chen, Xue-Xin, 2013, Heterospilus Haliday, 1836 (Hymenoptera: Braconidae, Doryctinae) from China with a key to species, Zootaxa 3683 (3), pp. 201-246 : 241

Heterospilus (Heterospilus) setosus sp. nov.

( Fig. 17 )

Description. Female. Body length 2.7 mm; fore wing length 2.3 mm.

Head. Antennae slender, filiform, 19-segmented. Scape 1.25 times as long as maximum width. First flagellar segment 4.5 times as long as its apical width, as long as second segment. Penultimate segment 4.0 times longer than wide, 0.9 times as long as first flagellar segment, as long as apical segment. Head behind eyes (dorsal view) uniformly and roundly narrowed. Width of head 1.4 times its median length. Eye 2.4 times as long as temple (dorsal view). Ocelli arranged in almost equilateral triangle. POL: OD: OOL = 2: 2: 5. Vertex and frons smooth. Vertex with sparse, short setae. Face almost smooth, only with sparse punctation, its width equal to height of eye, 1.1 times height of face and clypeus combined. Eye glabrous, 1.3 times as high as broad. Malar space 0.4 times height of eye, 0.8 times basal width of mandible. Malar suture absent. Occipital carina complete dorsally, fused with hypostomal carina ventrally.

Mesosoma. Length 2.1 times its height. Mesoscutum almost smooth, highly and more or less perpendicularly elevated above pronotum, entirely with dense setae. Notauli complete, deep anteriorly and shallow posteriorly, sparsely and distinctly crenulate. Scutellum smooth. Prescutellar depression deep, rather long, smooth, with single median carina, 0.5 times as long as scutellum. Mesopleuron smooth. Subalar depression shallow, coarsely rugosestriate. Precoxal sulcus deep, smooth, running along anterior 0.7 of lower part of mesopleuron. Propodeum with distinctly delineated by carinae and long basolateral areas, with distinctly delineated areola, basal carina short; basolateral areas almost smooth but distinctly rugulose-reticulate along carinae; remaining part of propodeum coarsely rugose-areolate.

Wings. Fore wing 3.3 times as long as maximum width. Vein r arising before middle of pterostigma. 3-SR forming very obtuse angle with r. 3-SR: r: SR1 = 12: 4: 35. First discal cell 1.7 times as long as maximum width. 1- SR+M distinctly curved. m-cu postfurcal. Hind wing: M+CU: 1-M = 8: 9. m-cu weakly curved towards base of wing, antefurcal, pigmented.

Legs. Hind coxa smooth. Hind femur smooth, 3.6 times as long as wide. Hind tarsus 0.9 times as long as hind tibia. Hind tibia dorsally with long, sparse and semi-erect setae; length of these setae 0.5–1.2 times maximum width of hind tibia. Hind basitarsus 0.4 times as long as second-fifth segments combined; second tarsal segment 0.8 times as long as basitarsus, 1.2 times as long as fifth segment (except pretarsus).

Metasoma. About 1.1 times as long as mesosoma and head combined. First tergite with distinct, weakly and curvedly convergent posteriorly dorsal carinae, densely and coarsely striate; apical width of tergite 1.85 times its minimum width, length 1.5 times its maximum width. Suture between second and third tergites distinct, almost straight. Second tergite entirely and densely striate, median length of tergite 0.8 times its basal width, equal to length of third tergite. Third tergite in basal 0.3 distinctly striate. Remaining tergites smooth. Ovipositor sheath 0.6 times as long as metasoma and 0.4 times as long as fore wing.

Colour. Head brownish yellow. Mesosoma and metasoma brown, apical part of metasoma brownish yellow. Antennae brownish yellow to black, two basal segments brownish yellow, apical three segments white. Palpi pale yellow. Legs yellow. Ovipositor sheath dark brown. Wings faintly infuscate. Pterostigma brown.

Male. Unknown.

Material examined. Holotype: Ƥ, China, Yunnan Prov., Yingjiang, Tongbiguan, 19.V.2009, Wang Manman, No. 200904083 ( ZJUH).

Diagnosis. This new species is similar to H. setosiscutum sp. nov., but differs in having the first and second tergites longer, and apical segments of antenna white.

Etymology. From Latin “ setosus ” meaning “setose”.

Distribution. China (Yunnan).

Figures

FIGURE 17. Heterospilus (H.) setosus sp. nov. A, habitus, lateral aspect; B, head, dorsal aspect; C, head, frontal aspect; D, wing; E, mesoscutum, dorsal aspect; F, mesosoma, lateral aspect; G, first-fourth metasomal tergites, dorsal aspect; H, thirdsixth metasomal tergites, dorsal aspect. Scale bar 0.5 mm.