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Asta
subnigra sp. n.
 18-21mm. Externally the species can only be distinguished from
the previous one by the underside of the forewings, which are black rather than
a uniform grey with the hindwings; the latter are a paler, more fawn colour in subnigra.
The male genitalia are similar to those of A. quadrilinea but
are more elongate and tapering both distad and basad from the broadest point at
two-thirds. There are lateral hair-pencils on small coremata between the second
and third abdominal segments.
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Asta
subnigra
(paratype)
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Holotype . BRUNEI: 300m, Ulu Temburong, rainforest, 30.6.79 (Lt. Col. M.G. Allen M.G. Allen
M.G. Allen M.G. Allen), BM noctuid slide 10787.
Paratypes
1
SARAWAK:
Mt. Dulit, R. Koyan, 2,500ft, primary forest, ii.x.1932, Oxford Univ. Exp. (B.M.
Hobby & A.W. Moore); 1 Mt. Marapok, Dent Province, Brit. N. BORNEO; 1
SABAH:
Mt Kinabalu, Kamborangoh, 2110m, vii-ix.1965, Cambridge Expedition to Mt.
Kinabalu 1965 (H.J. Banks, H.S. Barlow & J.D. Holloway H.S. Barlow &
J.D. Holloway H.S. Barlow & J.D. Holloway H.S. Barlow & J.D. Holloway),
BM noctuid slide 17539; 2 INDONESIA: Borneo, Kalimantan Tengah, Barito Ulu 2001, at Busang
/ Rekut River Junction, 0° 03' S, 113°59' E, viii.2001 (G. Martin).
Geographical
range. Borneo, Sumatra, India (slide 17539).
Habitat
preference. Though rarer than quadrilinea,
the recorded altitude range is almost as great.
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