Trigastrotheca Cameron

Quicke, Donald L. J., Butcher, Buntika A., Ranjith, A. P. & Belokobylskij, Sergey A., 2017, Revision of the non-Afrotropical species of Trigastrotheca Cameron (Hymenoptera: Braconidae: Braconinae) with descriptions of four new species, Zootaxa 4242 (1), pp. 95-110 : 97

Trigastrotheca Cameron

Redescription. Scapus small, shorter ventrally than dorsally in lateral aspect. Head very transverse, width of face typically 1.5 x height of eye in frontal view, almost entirely coriaceous. Eyes glabrous. Head coriaceous, often with pattern of ridges. Mesosoma largely coriaceous, densely short-setose. Notauli not impressed. Scutellar sulcus crenulate. Precoxal sulcus very weakly indicated, broad. Median area of metanotum usually with mid-longitudinal carina. Propodeum with complete midlongitudinal carina, laterally with weak apophyses. Fore wing: 2nd submarginal cell short (subquadrate) often with 3RS distinctly curved; vein RS approximately 3 x length of 3RS; vein (RS+M)a straight, arising from 1-M very close to parastigma. Claws with or without acutely pointed basal lobes. Metasoma with five visible strongly sculptured tergites. First metasomal tergite with strong dorso-lateral and dorsal carinae, the latter fused medio-posteriorly shortly in front of the posterior margin of the tergite. Second tergite without midbasal area, with pair of weak, more or less parallel or posteriorly converging, longitudinal grooves sublaterally. Second metasomal suture deep and crenulated. Fifth tergite (of female) with a mid-posterior prominence bordered by submedial emarginations; (of male) longer medially than laterally.