Tridrepana brunneilinea Holloway sp. n.

Diagnosis

♂♂ 12-13mm, ♀ 14mm.

This species belongs to the albonotata group with generally similar facies except the ground colour is pale brown and the antemedial, postmedial and submarginal fasciae are linear rather than punctate.

The forewing medial zone is suffused darker brown and the discal spots are whitish as in other albonotata group species.

The underside is a uniform pale brown.

The male genitalia differ from those of albonotata, microcrocea and the related obscura Watson (Java, Bali, Sumatra, Peninsular Malaysia) in the expanded bases to the processes of the uncus and the shape of the valves, tapered over the distal half.

Holotype ♂

SABAH: Poring, 1800ft., E. of Mt Kinabalu, 20-23.1.1976 (E. W. Classey), BM drepanid slide 2027.

Paratype

13 ♂♂ SARAWAK: Gunung Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Sites 8, (150m, G. Mulu), 14 & 15 (1000m, G. Mulu), 16 (70m, Long Pala), 23 (250m, W. Melinau Gorge limestone), 25 (900m, G. Api); 1 ♂, 1 ♀ BRUNEI: 300m, Ulu Temburong, rainforest, 10.2.1980 *(Lt. Col. M.G. Allen);*1 ♂ BORNEO: Sabah, Danum Valley, 5.01N, 117.47E, 30.ix.1985, 150m (A. H. Kirk-Spriggs).

Geographical range

Borneo, Peninsular Malaysia (FRIM Colln).

Habitat preference

The species is frequent in lowland forest but also extends strongly into the lower montane zone at around 1000m. It has not been taken in heath forests.

Genitalia: