Diplurodes kerangatis Holloway sp. n.

♂♀ 11-13mm. This species is very similar to D. sugillata but may be distinguished by the browner tinge to the grey suffusion, a suffusion that usually obscures the medial zone of the forewing. The postmedial fasciae are less dentate, more sinuous in course. The male genitalia have a slender, spatulate uncus and no tongue from the tegumen. The valves are trapezoid with a single, large, digitate process at the sacculus that lies close to the ventral margin and is slightly upcurved at the apex.

Holotype ♂

BRUNEI: Ulu Temburong, LP283, 350m (T. W. Harman), BM geometrid slide 15861.

Paratypes

• 1 ♂ BRUNEI: 300m Ulu Temburong, rainforest, 24.4.81 (Lt. Col. M.G. Allen) BM geometrid slide 13185
• 23 examples SARAWAK: Gunung Mulu Nat. Park, R.G.S Exped. 1977-8 (J.D. Holloway et al.) Mulu, various localities (see below). BM geometrid slides (♂♂) 10438, 10442, 10446.

Geographical range

Borneo, Sumatra, Peninsular Malaysia.

Habitat preference

Most of the specimens were taken during the Mulu survey in wet heath forest (kerangas) on raised river terraces in the lowlands. A few are from hill dipterocarp forest, and there are records also from lower montane forest on G. Mulu and the limestone G. Api.

Genitalia: