Diolcogaster Ashmead, 1900

Zeng, Jie, He, Jun-hua & Chen, Xue-xin, 2011, The genus Diolcogaster Ashmead, 1900 (Hymenoptera, Braconidae, Microgastrinae) from China, ZooKeys 129, pp. 49-87 : 51

Genus Diolcogaster Ashmead, 1900

Diolcogaster Ashmead 1900, 23(1206): 132; Viereck 1913, 46: 366; Viereck 1914, 83: 46; Viereck (1916)1917, 22: 202; Lyle 1918 51: 104, synon. by Szépligeti; Mason 1981 115: 113; Marsh et al. 1987 13: 32; Austin and Dangerfield 1992, 6(1): 5, 25; Whitfield 1997, No. 1: 337; Chen and Song 2004: 175. Type species: Microgaster brevicaudus Provancher, 1886. Designated by Viereck 1914.

Zadiolcogaster Viereck 1913, 46: 366; Viereck 1921, 59: 147, synon. by Muesebeck and Walkley 1951.Type species: Zadiolcogaster anomus Viereck, 1913.

Diagnosis.

Areolet of fore wing present, large or small, quadrangular or triangular; vannal lobe with margin usually convex and setose but sometimes varying to straight and setose and exceptionally concave and without setae. Side of pronotum always with ventral groove, rarely with dorsal groove. Propodeum usually rugose but occasionally smooth; median longitudinal carina strong and complete.

First tergite of metasoma bearing a sharp median longitudinal groove through most of its length; but varying from short and expanded apically to strongly narrowed, lorate. Second tergite with well- or ill-defined median field. Third tergite smooth, but strongly rugose when the second one is similarly sculptured. Hind coxa large, inner hind tibial spurs usually long.

Hypopygium short and inflexible. Ovipositor sheaths short, usually with dense setae near the apex; sheaths of most species with a few modified strong setae.

Key to species of the genus Diolcogaster Ashmead, 1900 from China