Oligogaster Soliman & Kimsey

Soliman, Ahmed M. & Kimsey, Lynn S., 2013, Oligogaster gen. nov., a new chrysidid genus from Egypt (Hymenoptera, Chrysididae, Elampini), Zootaxa 3681 (2), pp. 197-200 : 198-199

Oligogaster Soliman & Kimsey , gen. nov.

Type-species Oligogaster kimseyae Soliman , spec. nov.

Etymology. From Greek όλίγος, small number, and γαστηρ, gaster, referring to the reduced number of the metasomal segments; the specific name, kimseyae , is dedicated to Dr. Lynn S. Kimsey, authority on the Chrysididae .

Diagnosis. FEMALE. Scapal basin shallowly concave, cross-ridged ( Fig. 2 ); mandible acuminate apically, with a small subapical tooth ( Fig. 2 ); head without occipital carina or welt ( Fig. 3 ). Mesoscutum with well developed notauli and parapsidal lines ( Fig. 1 ); tegula unmodified, covering fore wing base only ( Fig. 1 ); metanotum evenly convex, with lateral angle ( Fig. 1 ); propodeum abruptly declivitous, without dorsal surface ( Fig.1 ); propodeal lateral angle well developed, slender (digitate), pointed to backward, strongly concave posteriorly, adjacent to metanotal angle ( Fig. 1 ). Fore wing venation reduced ( Fig. 6 ), only with three closed cells: costal (C), basal (B) and subbasal (SB); Rs short; Rs+M and Cu absent; Cu-a present. Tarsal claws edentate ( Fig. 5 ). Metasoma with two visible terga ( Figs 1, 7 ) and four strongly concave sterna; T1 extremely short ( Figs 1, 7 ); T2 distinctly long, apically entire (edentate), without pit row ( Figs 1, 7 ). Body metallic ( Figs 8–10 ), with very short sparse silvery setae.

MALE. Unknown.

Species included. Type species only.

Figures

FIGURES 1 – 7. Oligogaster kimseyae Soliman, spec. nov., female, holotype. 1. Habitus, dorsal view; 2. Head, frontal view; 3. Head, scape, pedicle and flagellomeres 1 – 3, lateral view; 4. Hind tibia, inner side; 5. Hind tarsal claw; 6. Fore wing; 7. Metasoma, lateral view.

FIGURES 8 – 11. Oligogaster kimseyae Soliman, spec. nov., female, holotype. 8 – 10. Habitus, lateral (8), dorsal (9), and ventral (10) view; 11. Distribution in Egypt.