Doryctes (Neodoryctes) yunnanicus, Belokobylskij, Sergey A., Tang, Pu, He, Jun-Hua & Chen, Xue-Xin, 2012

Belokobylskij, Sergey A., Tang, Pu, He, Jun-Hua & Chen, Xue-Xin, 2012, The genus Doryctes Haliday, 1836 (Hymenoptera: Braconidae, Doryctinae) in China, Zootaxa 3226, pp. 46-60 : 57-59

Doryctes (Neodoryctes) yunnanicus sp. nov.

( Figs 31–41 )

Description. FEMALE. Body length 5.2 mm; fore wing length 3.9 mm.

Head. Antenna slender, more than 16-segmented (apical segments missing). Scape 1.7 times as long as its maximum width. First flagellar segment about 6.0 times as long as its apical width, 1.3 times as long as second segment. Head width 1.5 times its median length, 1.15 times maximum width of mesoscutum. Head behind eyes (dorsal view) distinctly roundly narrowed. Eye 1.75 times as long as temple in dorsal view. Ocelli medium-sized, in almost equilateral triangle. POL: OD: OOL=3: 5: 12. Vertex smooth, mainly glabrous, with sparse and long setae marginally. Frons rugulose-striate in anterior half, finely coriaceous to smooth in posterior half. Temple entirely smooth. Eye glabrous, 1.2 times as high as broad. Face almost entirely densely and coarsely transverse striate with rugosity between striae, its width 0.8 times height of eye, 1.1 times height of face and clypeus combined. Malar space 0.33 times height of eye, 0.75 times as long as basal width of mandible. Malar suture very shallow, almost indistinct. Occipital carina complete dorsally, not fused with hypostomal carina ventrally.

Mesosoma. Length 2.45 times as long as its height. Pronotum with weakly convex lobe dorsally and with distinct pronotal keel in anterior 0.3. Median lobe of mesoscutum anteriorly convex and rather distinctly protruding forwards. Mesoscutum finely and densely granulate-reticulate, with two distinct and weakly convergent carinae in medioposterior 0.7 and with coarse rugosity in wide area in medio-posterior 0.7. Mesoscutum with sparse, long, pale and almost erect setae arranged rather widely along notauli and marginally. Notauli deep and wide anteriorly, shallow and narrow posteriorly, complete, distinctly and densely crenulate. Scutellum finely coriaceous, almost smooth laterally. Prescutellar depression deep, entirely coarsely and curvedly rugose, with distinct median carina, 0.35 times as long as scutellum. Mesopleuron rugose-striate in upper half, reticulate-rugulose to smooth in lower half. Subalar depression rather deep, wide, striate-rugose. Precoxal sulcus deep, long, smooth, running along almost entire lower part of mesopleuron. Propodeum with low lateral tubercles, with rugose-striate basolateral areas finely delineated by carinae, areola absent, most part of propodeum distinctly rugose-reticulate.

Wings. Fore wing 3.7 times as long as maximum width. Vein r arising weakly before middle of pterostigma, from its basal 0.45. Vein 3-SR forming obtuse angle with r. 3-SR: r: SR1: 2-SR= 23: 10: 52: 15. Second submarginal cell medium-sized, 2.7 times as long as maximum width, 1.1 times as long as first subdiscal cell. Vein 1- SR+M weakly sinuate. Vein m-cu distinctly antefurcal, distance between m-cu and 1-M almost equal to m-cu. CU1a arising from middle of distal margin of first subdiscal cell. Hind wing vein M+CU 0.4 times as long as vein 1-M. Vein m-cu entirely straight, antefurcal.

Legs. Hind coxa dorsally rugulose-reticulate with granulation, partly with transverse striae, laterally finely and densely granulate-reticulate, almost smooth below, without dorsal tooth. Hind femur 2.9 times as long as maximum width. Dorsal side of hind tibia with long, rather dense and semi-erect setae, their length 1.2–1.5 times maximum width of tibia. Hind tarsus 0.9 times as long as hind tibia. Hind basitarsus 0.7 times as long as second-fifth segments combined; second segment of hind tarsus 0.45 times as long as basitarsus, almost as long as fifth segment (except pretarsus).

Metasoma weakly longer than mesosoma and head combined. First tergite without spiracular tubercles, weakly and almost linearly widened from subbase to apex. Maximum width of first tergite 2.0 times its minimum width; its length 1.1 times maximum subapical width. Second tergite with fine, almost straight and almost parallel sublateral furrows; median length of second tergite 0.5 times its basal width, 0.7 times length of third tergite. Suture between second and third tergites distinct, shallow, weakly concave, without distinct sublateral bends. Third tergite without depression. First and second tergites entirely coarsely and densely striate; third tergite in basal 0.5–0.6 in curved towards lateral sides dense and distinct striae, smooth on rest part. Remaining tergites entirely smooth. Ovipositor sheath 0.45 times as long as metasoma, 0.65 times as long as mesosoma and 0.3 times as long as fore wing.

Colour. Body brownish yellow, head faintly infuscate dorsally and anteriorly, mesopleuron light reddish brown in lower half, prescutellar depression, axilla and metanotum dark reddish brown to black, propodeum darkened posteriorly, metasoma infuscate dorsally. Antenna brownish yellow, scape light reddish brown. Palpi pale yellow. Legs yellow, fore and middle femora brownish, hind femur reddish brown in apical 0.5, hind tibia yellowish basally; all fifth tarsal segments brownish. Wings very faintly infuscate. Pterostigma dark brown, yellow basally and apically at short distances.

Male. Unknown.

Material examined. Holotype: Ƥ, China, Yunnan Prov., Xishuangbanna, 31.VII.2003, Xu Zaifu, No 20053583 ( ZJUH).

Distribution. China (Yunnan).

Etymology. From the Yunnan province, type locality of the species.

Diagnosis. This new species distinctly differs from the Eastern Palaearctic and North Oriental species of subgenus Neodoryctes , D. denticoxa Belokobylskij and D. makiharai Belokobylskij and Maeto , in having the ovipositor and second tergite short, mesoscutum densely granulate, hind coxa without dorsal tooth, CU1a arising from the middle of distal margin of the first subdiscal cell, ocellar triangle equilateral, and suture between second and third tergites weakly concave and without distinct lateral bends.

Figures

FIGURES 31 – 41. Doryctes (Neodoryctes) yunnanicus sp. nov. 31, habitus, lateral aspect; 32, head, front aspect; 33, head, dorsal aspect; 34, basal segments of antenna; 35, mesosoma, dorsal aspect; 36, mesosoma, lateral aspect; 37, fore wing; 38, hind wing; 39, median part of fore wing; 40, metasoma, dorsal aspect; 41, propodeum and first-third tergites of metasoma, dorsal aspect.