Euhampsonia roepkei

Appearance

3-53 mm, montane specimens tending to be smaller than lowland ones. The forewings are a very much deeper, richer brown than in the Himalayan niveiceps. The main differences are in the male genitalia where the uncus and gnathal processes are larger, the former flattened horizontally rather than vertically and apically bifid. The aedeagus tapers strongly apically and the deciduous spicules in the vesica are much finer. The valves are longer, slender, the central spine longer and the ventral margin is sclerotized rather than membranous and corrugate.

Distribution

Borneo, Sumatra, Peninsular Malaysia.

Habitat

The type material is from upper montane forest on G. Mulu, but a specimen was also recorded from lower montane forest on the same transect. Two males have also been taken at about 300 m in hill dipterocarp forest, Ulu Temburong, Brunei.

Reproduction

The triangular head is bluish-green with white markings. The body is mainly white apart from green thoracic segments and seven subdorsal green stripes posteriorly to the thorax. The 11th segment (7th abdominal) is humped. The spiracles are set in a yellow line and are ringed with red and white. The legs are shaded green. There is a large anal flap, edged reddish brown.

The pupa is in a slight cocoon in leaf litter in captivity.

Food

Host plant is Quercus sp.