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Oxacme umbrodorsum sp. n. 

Oxacme umbrodorsum (paratype)
(x 1.73)

, 8-9mm. The ground colour is pale creamy yellow, the darker brown markings somewhat as in the Lyclene Moore group with longitudinal streaks on the veins distal to the postmedial, which is strongly angled one-third from the costa and sinuous posterior to this. The discal spot is small, and there is a distinctive rectangular shade at the centre of the dorsum. The forewing margin is not angled, but the apex is somewhat acute. The male abdomen has coremata typical of the genus, however, and the uncus is long, apically flexed as in asymmetrica. The valves are elongate as in asymmetrica but entire, without processes, sclerotised nearly throughout; the distal third is distinctly curved, separated from the basal part by a slight constriction. The cornutus in the aedeagus vesica is long, sinuous.

Holotype .SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), Site 14, February, Camp 2.5, Mulu, 1000m. 413461, lower montane for., BM arctiid slide 2788.

Paratypes: 4, 1 (slide 5226) as holotype; 12 examples, general data as holotype but Sites 13, 15, 23, 24 and 25; 1 SABAH: Poring, 1800ft., E. of Mt. Kinabalu, 20-23.i. 1976 (E.W. Classey).

Geographical range. Borneo, Peninsular Malaysia.

Habitat preference. The species is commonest in lower montane forest, but also occurs in lowland forest, taken on both G. Mulu and the limestone G. Api during the Mulu survey at altitudes from 250m to 1000m.

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