Tamba hemiionia Hampson
Tamba hemiionia Hampson, 1926, Descr. new Gen. Spec. Noct
Diagnosis
The facies is somewhat similar to that of submicacea (see above) but the species is smaller, and less strongly marked. a distinctive feature is the irregular strip of dark brown just interior to the hindwing postmedial that extends from subdorsally to two thirds, and then continues as a narrow and diffuse dark shade distad to the acute angle at Rs on the margin. Only females have been seen.
Geographical range
Singapore, Borneo, Sumatra (HS / K).
Habitat preference
The only Bornean specimen seen in recent surveys is from disturbed alluvial forest at Long Pala (70m) in the G. Mulu National Park. Two older specimens are from 85 miles above (upstream from?) Pontianak in Kalimantan.