colyeri sp. n.
9mm, 8mm. The facies is similarly coloured to that of kingi,
but the species is smaller. The costal triangles of the forewing are prominent,
dark brown, equal in size, and a further wedge of dark brown in the centre of
the wing posterior to the medial costal triangle distinguishes colyeri
other Bornean Chorsia except the next species. In the male genitalia the
uncus has a rather clubbed dorsal process, with the apical part arising from a
plate at the base of this and consisting of a long, slender spine with the apex
flexed slightly downward. The valves are rather irregular in shape, broad at the
base such that the whole genital capsule at this point is broader and more
robust than in kingi. The aedeagus vesica is globular with minor diverticula, and is
. BRUNEI: 15m, Daerah Belait, Badas, swamp forest, 2 Feb ’82 (Lt.
Col. M.G. Allen), BM noctuid slide 18157.
30-60m, Labi, lowland forest and secondary veg. 12.4.81 (Lt. Col. M.G. Allen);
SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped.
1977-8 (J.D.Holloway et al.), Site 17, March, nr. Long Melinau, 50m.
313441, low secondary f. on river bank.
preference. All specimens are from lowland forest.
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