Dibrachys maculipennis Szelenyi , 1957, new record to China

Jiao, Tian-yang, Yao, Qin-ying & Xiao, Hui, 2017, Review of Dibrachys Foerster from China (Hymenoptera, Chalcidoidea, Pteromalidae), ZooKeys 656, pp. 123-149 : 137-138

Dibrachys maculipennis Szelenyi, 1957, new record to China Figs 33-37

Dibrachys maculipennis Szelényi, 1957: 301, 307.

Diagnosis.

Body slender (Figs 33, 34), length 2.2-2.3 mm; gaster spindle. Head in frontal view (Fig. 35), 1.13 × as wide as high; antennal scrobe very shallow, extending upwards but not reaching anterior ocellus; antennal insertion slightly above lower ocular line; lower face flat; clypeus with transverse striation and lower margin slightly protruding with two blunt teeth. Antennal scape as long as eye height, reaching lower margin of anterior ocellus; length of pedicel and flagellum combined slightly shorter than head width (0.95 ×); anelli transverse; Fu1 to Fu3 slightly long than broad respectively, Fu4 and Fu5 quadrate, Fu6 slightly transverse; clava slightly clavate, 2 × as long as broad. Head in dorsal view, 2 × as wide as long; occipital carina strong; POL 1.5 × OOL. Mesosoma 1.6 × as long as broad, with regular reticulation. Propodeum (Fig. 36) with median carina incomplete; plicae distinct anteriorly. Fore wing (Fig. 37) with a yellowish-brown infumation behind marginal vein; submarginal vein 2 × as long as marginal vein, marginal vein 1.94 × as long as postmarginal vein, 1.5 × as long as stigmal vein; stigma vein slightly longer than postmarginal vein (1.1 ×). Gaster 2 × as long as broad, 1.14 × as broad as thorax width.

Material examined.

China: 2♀, Beijing, V1967; 1♀, Shaanxi: Hangzhou, X.1959, ex. Smerinthus planus Walker, leg. Zhe-Min Zheng; 1♀, Zhejiang: Hangzhou, 7.VI.1972, ex. Apanteles baoris Wilkinson, leg. Ding-Xi Liao.

Hosts.

Recorded hosts of the species were Megachile rotundata (Fabricius) ( Hymenoptera : Megachilidae ) ( Peck 1969) and Hyphantria cunea (Drury) ( Lepidoptera : Erebidae ) ( Dzhanokmen 1978). Here we newly report Smerinthus planus Walker ( Lepidoptera : Sphingidae ) and Apanteles baoris Wilkinson (Hymenopter: Braconidae ).

Distribution.

China (Beijing, Shaanxi, Zhejiang); Palearctic, Nearctic and Neotropic regions.