Psilargus Shcherbakov, 2020

Shcherbakov, D. E., 2020, The earliest fully brachypterous auchenorrhynchan from Cretaceous Burmese amber (Homoptera: Fulgoroidea: Jubisentidae), Russian Entomological Journal 29 (1), pp. 6-11 : 9

Psilargus Shcherbakov , gen.n.

TYPE SPECIES. Psilargus anufrievi Shcherbakov , sp.n.

DIAGNOSIS. Besides characters listed in subfamily diagnosis, differs from two known genera of nominate subfamily in the following features, mainly associated with brachyptery. Dorsal outline serrated in profile, with upcurved posterior edges of body segments and transverse ridges on tegmen and abdominal tergites.Lateral margins of pronotum exposed (overlapped by eyes reaching bases of tegmina in other jubisentid genera). Mesonotum triangular with apex truncate and upcurved (acute in other jubisentids). Fore legs longer than body (shorter). Hind tibiae slender with fin-like lateral lobe distally (foliaceous for entire length in other jubisentids). Subapical setae of hind leg pectens acuminate, of acutella type (slightly inflated, somewhat platella-like in other jubisentids); 2 nd tarsal pecten with two outermost teeth asetigerous.

COMPOSITION. Type species.

ETYMOLOGY. From the Greek psilos (bare, smooth, naked), referring to the reduction of wings and body setae, and Argos (hundred-eyed guardian of Io), referring to dozens of round sensory pits; gender masculine.