Ischnoptera adusta, n. sp.—Description—Male: Colour dark yellowish, with eyes black and the disc of the pronotu slightly mottled with fuscous and the tips of the elytra and wings fuliginous. Anterior femora beneath of the inner margin armed on the apical two-thirds with about ten semiequal, equidistant spines, the basal third unarmed. Subgenital plate roundly incised apically; apical styles long, slender rigid spines extending about half their length beyond the apex of the subgenital plate; cerci long, fusiform.