Oglasa costimacula Wileman
Oglasa costimacula Wileman, 1915, Entomologist, 48: 192.
Diagnosis
This and the next species have the anterior arc of the forewing submarginal enclosing a dark brown area at the margin. In costimacula this area is shorter and the pale arc of the submarginal is more strongly curved. The male genitalia are similar to those of the previous two; the valve apex is rounded, but the valve is broadest centrally; the flap on the dorsal side of the pleat is rounded but short.
Geographical range
Taiwan, Borneo.
Habitat preference
Only a single male has been recorded, from alluvial forest with limestone present at 70m at Long Pala near the foot of G. Mulu.
Genitalia: