Gemeneta Karsch, 1892

Ngoute, Charly Oumarou & Kekeunou, Sevilor, 2017, Redescription and diagnosis of the African genus Gemeneta Karsch, 1892 (Orthoptera: Acrididae: Catantopinae), Journal of Orthoptera Research 26 (2), pp. 161-170 : 162

Gemeneta Karsch, 1892

Escalera = Bolívar, 1905 (syn. Dirsh 1958).

Type species.-

G. terrea Karsch 1892.

Revised diagnosis of genus, compared to Dirsh’s (1965) generic description.-

The generic description presented in this work differs somewhat from the description of Dirsh (1965). Dirsh decribes the integument as being strongly tuberculate, and his diagnosis emphasizes the presence of a fastigial furrow and a short epiphallus. Unlike Dirsh (1965), we find that only G. opilionoides has a strongly tuberculate integument and G. terrea has a less tuberculate and granulated integument; G. opilionoides lacks a fastigial furrow - this character is specific to G. terrea ; the epiphallic lophi of both species are lobiform but G. opilionoides have wide lophi while those of G. terrea are narrow or short like those described by Dirsh (1965).

Diagnosis.-

Body with integument slightly or strongly tuberculate and granulated; antenna longer than head and pronotum together; head conical, frons incurved; fastigium of vertex elongate-angular and sloping forwards; frontal ridge weak, strongly constricted below lateral ocelli; eyes convex; ocelli small. Pronotum cylindrical, with median and lateral carinae substituted by granulae; dorsum crossed by three sulci; prosternal process conical; external apical spine of the hind tibia absent; elytra and wings absent; the third segment of foot longer than the first, and the first longer than the second. Male supra-anal plate elongated, angular, with deep transverse furrow. Subgenital plate conical, with acute apex. Valves of ovipositor long, straight, with slightly curved apices; cercus conical. Epiphallus with wide bridge, small ancorae and incurved lobiform lophi; ventral aedeagal valves and valves of cingulum elongated, enclosed in a wide ectophallic sheath; anterior apodemes of aedeagus divergent with rounded apices; gonopore process pointed; zygoma wide, apodemes of cingulum parallel with acute apices.