, 15-17mm. The facies is very similar to that of the previous two species, except the dark fasciae of the forewing are less clearly defined than in concisalis and only slightly and irregularly crenulate; they are tinged purplish in fresh material. The postmedial is more angular, less smoothly sinuous than in consisalis. The males have a nodal swelling towards the centre of the otherwise ciliate antennae, and the foreleg tuft is straw-coloured. The sheath and first tarsal segment of the male foreleg are shorter than in butesalis, only 1.5x the length of the femur. The labial palps have the second segment longer than the third and not as deep in the vertical plane as in butesalis; the margins of the two segments are colinear at the junction. The male genitalia have the valves with a straight costa and a ventral margin where the curvature increases distally to join the costal margin in an acute and somewhat produced spine. The aedeagus vesica has a small diverticulum distally in line with the aedeagus, and a shallow distal swelling over the body of the vesica that extends laterally and is generally but variably scobinate over this swelling. The female genitalia have a more ovate, less elongate corpus bursae that is less densely spined, and the ductus seminalis is more lateral and distinctly coiled.
Holotype. BRUNEI: 15m, Telisai, sandy heath forest with Gymnostoma, 13.12.1979, (Lt. Col. M.G. Allen), BM noctuid slide 19478.
Paratypes: 1 (slide 10798) SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), Site 13, February, Camp 2, Mulu, 500m, 401464, mixed dipt. for.; 3 (slide 19411) as previous but Site 14, February, Camp 2.5, Mulu, 1000m; 2 as previous but Site 15, February, Camp 2.5, Mulu, 1000m. 413461, lower montane for.; 1 (slide 19477) as previous but Site 20, Mar.-Apr., W. Melinau Gorge, 150m. 422577 FEG 3, kerangas; 3 (slides 19412, 20494 (foreleg)) as previous but Site 25, April, G. Api, 900m. 427550, lower montane forest; 1 (slide 19408) BORNEO: Sabah, Bukit Monkobo, 5° 48' N, 116° 58' E, 9.viii.1987, 100m, (A.H. Kirk-Spriggs), stunted hill forest.
Taxonomic note. Only the dissected female is included in the type series.
Geographical range. Borneo.
Habitat preference. Most material is from lower montane forest, but the holotype and the female are from lowland heath forest.
