Heterospilus (Heterospilus) parvus, 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 : 228-230

Heterospilus (Heterospilus) parvus sp. nov.

( Fig. 11 )

Description. Female. Body length 2.3 mm; fore wing length 1.8 mm.

Head. Antennae slender, 20-segmented. Scape 1.3 times as long as maximum width. First flagellar segment 4.0 times as long as its apical width, 0.9 times as long as second segment. Penultimate segment 0.8 times as long as first flagellar segment, as long as apical segment. Head behind eyes (dorsal view) distinctly, rather regularly and roundly narrowed. Width of head 1.5 times its median length. Eye 2.1 times as long as temple (dorsal view). Ocelli arranged in almost equilateral triangle. POL: OD: OOL = 2: 2: 6. Vetex finely striate. Frons smooth. Vertex with sparse, long setae. Eye glabrous, 1.3 times as high as broad. Malar space 0.5 times height of eye, 1.2 times basal width of mandible. Face smooth, its width equal to height of eye, 1.3 times height of face and clypeus combined. Malar suture absent. Occipital carina complete dorsally, not fused with hypostomal carina ventrally.

Mesosoma. Length 1.8 times its height. Mesoscutum entirely densely and distinctly granulate, highly and perpendicularly elevated above pronotum, with sparse, long setae arranged along notauli. Notauli wide, deep. Scutellum smooth. Prescutellar depression deep, rather long, with three distinct carinae, 0.6 times as long as scutellum. Subalar depression deep, rather wide, coarsely striate. Precoxal sulcus deep, curved, distinctly crenulate, running along anterior 0.7 of lower part 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; remaining part of propodeum coarsely rugose-areolate.

Wings. Fore wing 3.2 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 = 9: 6: 29. First discal cell 1.7 times as long as maximum width. 1- SR+M weakly curved. m-cu postfurcal. Hind wing: M+CU: 1-M = 15: 18. m-cu unsclerotized, straight, oblique towards apex of wing, antefurcal.

Legs. Hind coxa distinctly densely striate with granulation dorsally. Hind femur coriaceous dorsally, 3.9 times as long as wide. Hind tibia dorsally with long, sparse and semi-erect setae; length of these setae 0.5–1.0 times maximum width of hind tibia. Hind tarsus 0.9 times as long as hind tibia. Hind basitarsus 0.4 times as long as second-fifth segments combined; second tarsal segment 0.9 times as long as basitarsus, 1.5 times as long as fifth segment (except pretarsus).

Metasoma. Almost as long as mesosoma and head combined. First tergite with distinct, weakly and curvedly convergent posteriorly dorsal carinae, rather densely and coarsely striate; apical width of tergite 2.0 times its minimum width, length 0.9 times its maximum width. Suture between second and third tergites indistinct. Second tergite entirely distinctly and densely longitudinally striate, median length of tergite 0.5 times its basal width, 0.9 times length of third tergite. Remaining parts of tergites smooth. Ovipositor sheath 1.7 times as long as metasoma and as long as fore wing.

Colour. Head yellowish brown. Mesosoma reddish brown. Metasoma almost yellowish brown. Antennae yellowish brown to black, two basal segments yellowish brown. Palpi pale yellow. Legs yellowish brown, all coxae and trochanters pale yellow. Ovipositor sheath black. Wings faintly infuscate. Pterostigma dark brown.

Male. Unknown.

Material examined. Holotype: Ƥ, China, Hainan Prov., Yinggeling, 28.V–3.VI. 2007, Weng Liqiong, No. 200804303 ( ZJUH).

Diagnosis. This new species is similar to H. corsicus Marshall , but differs in having the ovipositor long, temple short, second tergite long, and suture between second and third tergites very indistinct.

Etymology. From Latin “ parvus ” meaning “small”.

Distribution. China (Hainan).

Figures

FIGURE 11. Heterospilus (H.) parvus sp. nov. A, habitus, lateral aspect; B, head, dorsal aspect; C, head, frontal aspect; D, wing; E, antennae; F, metasoma, dorsal aspect; G, mesosoma, lateral aspect; H, mesoscutum, dorsal aspect; I, propodeum, dorsal aspect. Scale bar 0.5 mm.