Diagnosis. Males are easily distinguished by their rather deep forewings that have a flap of scales extending in from the angle at the centre of the costa towards the large black spot. The underside of the forewings is also rather pilose centrally. Possible females are smaller, lack these features of scaling, and have a smaller black patch that is more reniform in shape.
Geographical range. Peninsular Malaysia, Borneo.
Habitat preference. Single males have been recorded from Sandakan in the lowlands of Sabah, from 500m in dipterocarp forest on G. Mulu and from 1200m at Bundu Tuhan on the western slopes of G. Kinabalu. The first and third localities have had much human disturbance but the second has not. Chey (1994) recorded a specimen in an Acacia mangium plantation near Brumas, also in the lowlands of Sabah. A possible female (illustrated) has been taken in a Eucalyptus deglupta plantation with secondary forest at Brumas in the lowlands of Sabah.
