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Chorsia
kingi sp. n.
 , 9-11mm. The facies is a dull medium grey-brown, the forewing
with the usual dark triangles on the costa, a small one subbasally and a larger
one medially that has a dark discal dot just beyond its apex and a dark shade
between that and the dorsum. This is the first species in the group of four
distinguished from all others in Borneo by the presence of a dorsal process to
the uncus. In the abdomen the eighth sternite has a rather small and anterior
lacuna for a vestigial corematous structure, with the lateral and distal parts
of the framing structure relatively broad.
The
tergite has a more broadly triangular central thickening but this still expands
from the anterior margin to the posterior. The uncus and dorsal spine are
elongate and slender compared to the next three species, and the spine arises
relatively distally. The valve has a sinuous ventral margin.
Holotype
. SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.Holloway et al.),
Site 23, April, W. Melinau Gorge, 250m, 430558, FEG 4, limestone forest, BM
noctuid slide 18150.
Paratypes:
4
(slide
18526) as holotype.
Geographical
range. Borneo.
Habitat
preference. All material has been taken in lowland forest on limestone.
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