Gribodia nigra Nguyen & Xu

Nguyen, Lien Thi Phuong & Xu, Zaifu, 2015, Taxonomic notes on the genus Gribodia Zavattari, 1912 (Hymenoptera: Vespidae: Eumeninae) from Vietnam and China, with description of a new species, Zootaxa 4040 (4), pp. 458-464 : 462-463

Gribodia nigra Nguyen & Xu , sp. nov.

( Figs 15–19 )

Material examined. HOLOTYPE, ♀, CHINA, Hainan, Yinggeling Natural Reserve, 18°49'N, 109°11'E, 16– 20.xi.2008, Wei Dong [ SCAU].

Diagnosis. The new species can be distinguished from other congeners by following combination of characteristics: clypeus thick, strongly convex from base to apical margin, propodeum with weak edges, only present at basal half, and the color pattern.

Description. Female. Body length 13.6 mm; fore wing length 13.0 mm. Similar to female of Gribodia cupreipennis but differs as follows. Head 1.2 × as wide as high ( Fig. 15 ). Distance from posterior ocelli to apical margin of the vertex 1.7 × distance from posterior ocelli to inner eye margin ( Fig. 17 ). Gena nearly 0.5 × as wide as eye ( Fig. 16 ). Clypeus thicker than in G. cupreipennis , in lateral view strongly convex from base to apical margin ( Fig. 16 ), in frontal view pear-shaped, slightly depressed near apical margin, 1.1 × as high as wide ( Fig. 15 ). Propodeum with edges weaker than in G. cupreipennis , only present at basal half ( Fig. 18 ). T2 nearly as long as wide ( Fig. 19 ). Clypeus with shallower and smaller punctures than in G. cupreipennis . Body with less coarse punctures than in G. cupreipennis .

Color. Black except two small marks on clypeus near basal margin, large spot between antenna, narrow band along inner eye margin extending from bottom of frons to nearly ocular sinus and scape beneath yellow.

Male. Unknown.

Distribution. China: Hainan.

Etymology. The specific name refers to the black body of this species.

Figures

FIGURES 15 – 19. Gribodia nigra sp. nov., ♀. 15. Head, frontal view, 16. Head, lateral view, 17. Vertex, dorsal view, 18. Propodeum, 19. T 1 – 2, dorsal view.