Corgatha luteicosta Holloway sp. n.

♂♂, ♀♀ 6-7mm. The facies is somewhat reminiscent of that of atripuncta Warren, but the forewing costa is yellow rather than darkish grey, and the fasciae are blackish rather than paler than the ground. Where the postmedial crosses the costal yellow strip, it has an oblique white bar on the distal side. There is a white bar between the antennal bases, and white on the basal side of each submarginal black dot on the forewing, particularly the larger more anterior ones. These submarginal dots form a row on all wings, and are separate from the distinctive marginal band. This marginal band consists of two fine black lines separated by a line of the brown ground colour. On the basal side of this is a fine white line that is interrupted by the veins. The male genitalia have tongue-like valves that expand slightly to the rounded apex. There is no costal process as in typical Zitna, and the saccular process is central and also rather tongue-like.

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 20253.

Paratypes

• 3♂♂ general data as holotype but Site 26, April, G. Api Pinnacles, 1200m 428545, open scrub
• 1♂ BRUNEI: 1365m, Bukit Retak, LP 238, GR 873804, 1-4.v.1989, moss forest ( M.G. Allen & K.R. Tuck).

Geographical range

Borneo.

Habitat preference

All five specimens are from montane forest or scrub, four from the limestone G. Api.

Genitalia: