Arctornis faucium sp.
13-14mm. In facies and genitalia this species is very
close to minutissima. There are no definite differences in facies. The
genitalia have the uncus distinctly broader, but otherwise the same shape. The
valve is more tapering, the apex squarer, its dorsal spur at the angle rather
than in a more subapical position, though variable in size. The apex of the
harpe is blunt, with only fine setae, and the harpe itself is straight rather
Holotype . BRUNEI:
Rampayoh, 200m, 2.iii.1982 (T.W. Harman) BM lymantriid slide 2146.
SARAWAK: Gunung Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D.
Holloway et al.) Site 13 (2, slide 1605), February, Camp 2, Mulu, 500m,
401464, mixed dipt. for., Site 20 (2, slide 1604), Mar.-Apr., W. Melinau Gorge,
150m, 422577, kerangas, and Site 23 (3, slide 1603), April, W. Melinau Gorge,
250m, 430558, FEG 4, limestone forest.
Geographical range. Borneo.
Habitat preference. The species is uncommon but has been taken in a
variety of lowland forest types, particularly on limestone and heath forest near
the Melinau Gorge.
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