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Characoma pallidorsum sp. n.


Characoma pallidorsum

11-13mm. This species is a paler, more uniform grey than the previous two, with the forewing subbasal straighter and meeting the dorsum near the base, such that the distinctly paler zone distal to it is broader from the centre to the dorsum. The male has the hindwing tornus produced as in metalophota but to a lesser extent and invested with pale cream scales rather than buff ones. The male genitalia have a slightly less expanded tegumen than metalophota, though not so reduced as in albulalis and the next species. The hook at the ventral end on each side is perhaps slightly tighter (a smaller interior excavation) than in metalophota.

Holotype . SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.), Site 1, January, Camp 4, Mulu, 1790m. 452463, [upper] montane (moss) forest, BM noctuid slide 10670.

Paratypes: 1 as holotype; 1 as holotype but Site 2; 1 as holotype but Site 5, 1780m. 451463; 1 as holotype but Site 15, February, Mulu, Camp 2.5, 1000m. 413461, lower montane forest; 1 as holotype but Site 16, March, Long Pala (Base), 70m. 324460, alluv./second. for.; 2 BRUNEI: 1618m, Bukit Retak, montane forest, 25.4.81 (Lt. Col. M.G. Allen).

Geographical range. Borneo, N.E. Himalaya, Singapore, Philippines.

Habitat preference. Rarer than the previous two species, pallidorsum has been recorded in lowland forest and up to 1790m.

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