Chorsia perversa Walker comb. n.
Xylina perversa Walker, 1862, J. Linn. Soc. (Zool.), 6: 195.
Diagnosis
There may be some sexual dimorphism in this small species, a possible female (see below) being darker, greyer, more uniform. Both sexes have, along the costal zone of the forewing in sequence from the base: a tapering, distally directed dark wedge; a similarly oriented, elongately ovate pale mark; a darker triangle on the costa; a pale reniform mark, edged slightly darker distad; an irregular pale streak running obliquely into the apex. The female shows subtle differences in facies and has a much weaker subapical pale spot on the forewing; it may represent another species.
Genitalia: