Clettharina macrocorema sp. n.
13mm. This species has a male very similar to the unique holotype of nitens,
but lacking the dull golden triangular area of the hindwing. The females have
the basal area of the forewing suffused golden. The male abdomen has the pair of
pouches on the basal sternite rather than the third, rounder, and with a massive
corema in each rather than a vestigial one. The differences on the eighth
segment have been described in the generic account. The male genitalia have the
uncus more reduced, the upper part of the valve with a more angular apical
flexure, and there is an obtuse angle to the lower part at one-third. It is not
clear whether a female from Peninsular Malaysia (slide 16994) is referable to
nitens or macrocorema but it has the bursa copulatrix centrally
constricted rather than somewhat rectangular as in Bornean females.
BRUNEI: 300m. Ulu Temburong, rainforest, 30.6.1979, (Lt. Col. M.G. Allen),
BM noctuid slide 16990.
BRUNEI: 1300ft, Ulu Temburong, L.P.283, lowland forest, 19-22.ii.1982 (G.S.
(slide 16995) SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway
et al.), Site 8, February, Camp 1, Mulu, 150m. 385470, mixed dipt. for.
Geographical range. Borneo, ?Peninsular Malaysia (female referred to above).
Habitat preference. All three specimens are from lowland dipterocarp forest.
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