GASTROGONATOCERUS Ogloblin, 1935

(Figs 141–146)

Gastrogonatocerus Ogloblin, 1935c: 66 (as subgenus of Gonatocerus). Type species: Gastrogonatocerus membraciphagus Ogloblin, 1935, by original designation.

Diagnosis. Back of head with transorbital sulcus complete, extending from ventral margin of each eye to dorsal margin of foramen, thus separating occiput from gena (Fig. 141b); dorsellum rhomboidal, with posterior margin evenly convex (Fig. 144); fore wing with microtrichia mostly absent posterior to and just distal to venation (Fig. 143), thereafter fairly uniformly but often sparsely distributed; propodeum medially and submedially with 2 or 3 fine and faint longitudinal carinae between submedian carinae (when present) and propodeal spiracle often huge (Fig. 144); ovipositor and sheaths almost always extending anteriorly in wide gastral sac ventral to mesosoma (Fig. 145), exceptionally not extending anterior to gaster (Fig. 146b).

Remarks. Gastrogonatocerus belongs to the Gonatocerus group of genera. Gastrogonatocerus is most similar to Gahanopsis. Both have a complete transoccipital sulcus, and an anteriorly projecting gastral sac. The gastral sac is much narrower and usually projects farther anteriorly than in Gahanopsis, and the shape of the dorsellum and the propodeal carinae are different from Gastrogonatocerus.

Neotropical hosts. Hemiptera.

Important reference s. Triapitsyn et al. (2010), Huber (2015a).