, 11-12mm. The species is a smaller version of the previous one, with similarly serrate male antennae, but with more vinous blackish forewings. These are variegated greyish in the female, uniform in the male, with a sinuous transverse fascia centrally that consists of a slightly broken, black, basal component adjacent to a more entire, paler, distal component, and a punctate submarginal of the same form as castanea; both these are more evident in the female. The male abdomen is very similar to that of castanea, except the juxta has an upper rectangular portion with a notch in its distal margin. The female genitalia have a short, sclerotised antrum to the ductus, notched in its distal ventral margin at the ostium. The corpus bursae is mostly ovate, except it is produced into an angle at one side at the junction with the ductus, with the ductus seminalis arising from this junction.
Holotype. SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), Site 25, April, G. Api, 900m. 427550, lower montane forest, BM noctuid slide 18177.
Paratypes: 9, 1 as holotype; 1 as holotype but Site 13, February, Camp 2, Mulu, 500m, 401464, mixed dipt. for.; 2 (slide 18178) as holotype but Site 14, February, Camp 2.5, Mulu, 1000m. 413461, lower montane forest; 1 (slide 19661) as holotype but Site 23, April, W. Melinau Gorge, 250m, 430558, FEG 4, limestone forest; 1 BRUNEI: 300m, Ulu Temburong, rainforest (H.S. B[arlow]), Oct. 1978.
Geographical range. Borneo.
Habitat preference. Most material is from lower montane forest, but there are three specimens from lowland forest. There appears to be preference for forest growing on limestone.
