14mm, 16mm. This species is somewhat similar to A. albirenalis Moore (N.E. Himalaya, China, Thailand; illustrated by Kononenko & Pinratana (2005)) but is smaller and a more uniform black with the fasciation more obscure, less extensively highlighted with white, this being restricted to the submarginals. The submarginal of the forewing is relatively uniform, whereas in albirenalis it is more evident over its anterior half, and there is a vestige of the marginal pale patch that typifies the genus. The underside is also more uniform than in albirenalis, and the submarginals are more regularly and finely crenulate, that of the forewing lacking the stronger bar seen in albirenalis at the point of the pale patch. The antennae of the holotype male are missing, but they are likely to be of the strongly fasciculate, noded type seen in albirenalis. The male genitalia have robust valves typical of Adrapsa, apically spatulate and rounded, with a triangular flap subcostally and a shallow, rounded one running from the centre of this flap obliquely towards the ventral margin. In albirenalis there is a strong spur at the centre of the valve costa, but there are no processes on the interior; the valve apex is almost square. The aedeagus of albirenalis has its apex produced ventrally into a short rasp, and the vesica is more generally scobinate and has a narrow band of spines extending into one diverticulum.
Holotype. Hili Zabobo, N. NIAS, Aug. [18]86, Joicey Bequest, BM noctuid slide 20319.
Other material: 1 SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), Site 14, February, Camp 2.5, Mulu, 1000m.
Geographical range. Nias I., Borneo.
Habitat preference. The only Bornean specimen is from lower montane forest on G. Mulu.
14mm,