Genus Opistoplatys Westwood

Opistoplatys Westwood, 1835: 447 . Type species: Opistoplatys australasiae Westwood, 1835, by monotypy. Decius Stål, 1860: 263 . Type species: Cimbus terrens Stål, 1854b (= Opistoplatys australasiae Westwood, 1835), by monotypy. (Synonymized by Stål, 1862: 444.)

Pangeranga Distant, 1906: 365 . Type species: Pangeranga cinnamomea Distnat, 1906, by original designation. (Synonymized by Bergroth, 1921: 67.)

Opistoplatys, the type genus of the tribe Opistoplatyini Bergroth, 1921, is the second largest genus after Tribelocephala Stål, 1854 (Stål, 1854a), in the subfamily Tribelocephalinae and to date includes 32 described species from the Oriental and Australian regions (Maldonado Capriles 1990, 1996). Diagnostic character states of this genus are: head, thorax, and legs densely covered with long and short setae; head oblong to elongate, longer than pronotum; clypeus not projected anteriad; interocular space narrower than eye in dorsal view; eyes large, calabash-shaped in lateral view; antennal segments I and II densely covered with long setae; antennal flagellum 6- segmented; pronotum trapezoidal, distinctly divided into anterior and posterior lobes; anterior pronotal lobe elevated, longitudinally sulcate medially, and rounded at anterior angles; and scutellum nearly triangular, obtuse at apex.