Dibrachys yunnanensis Yang, 1996

Jiao, Tian-yang, Yao, Qin-ying & Xiao, Hui, 2017, Review of Dibrachys Foerster from China (Hymenoptera, Chalcidoidea, Pteromalidae), ZooKeys 656, pp. 123-149 : 131

Dibrachys yunnanensis Yang, 1996

Dibrachys yunnanensis Yang, 1996: 199-201, 324.

Diagnosis.

Body squat, length 2.0-2.4 mm. Head in front view 1.3 × as wide as high; antennal scrobe shallow, extending upwards and reaching anterior ocellus; antennal insertion placed on the lower ocular line; clypeus with longitudinal sculpture; lower margin of clypeus slightly protruded, median emarginate and with 2 sinuate teeth; gena evenly curved, lower angle of gena not exceeding clypeal margin. Antennal scape slightly shorter than eye height, length of flagellum and pedicel combined less than head width (0.74 ×); pedicel in lateral view 2.2 × as long as broad; both anelli transverse; Fu1 and Fu5 quadrate, Fu6 distinctly transverse. Head in dorsal view, 1.9 × as wide as long, eye length 1.79 × temple length; POL 1.78 × OOL. Mesosoma 1.5 × as long as broad, mid lobe of mesoscutum with regular sculpture. Propodeum with plicae complete, median carina distinct on base part. Fore wing with submarginal vein more than 2 × as long as marginal vein, marginal vein 1.5 × as long as postmarginal vein, stigmal vein as long as postmarginal vein. Gaster 1.3 × as long as broad, as broad as thorax width.

Material examined.

China: 1♀, Yunnan: Nanjian, 2.VI.1980, leg. Ding-Xi Liao.

Hosts.

This species parasitized on larvae and pupae of Tomicus piniperda L. ( Coleoptera : Curculionidae ) which harmful to Pinus yunnanensis ( Pinales : Pinaceae ) ( Yang 1996).

Distribution.

China (Yunnan).