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Leucoma
bicolorata sp.
n.
Diagnosis.  
14-15mm. The
moth is predominantly white, with very faint compressional banding on the
forewing, not as obvious as in impressa. The labial palps and forelegs
are a brighter yellow-orange than in impressa and ochripes, with
yellow scales also ventral to each eye. The palps protrude beyond the frons. The
antennae are diagnostically darker, browner than the yellow-orange areas. In the
male genitalia, the valves are moderately symmetric, but developed into narrow,
curved arms with a pair of setal spines apically as illustrated. Similar spines
are seen in greater numbers at the apices of the much shorter and broader valves
of L. cryptadia Collenette from Sri Lanka. In cryptadia the
antennae are also darker than the orange areas, but the wings of the male are
much deeper, the forewings largely transparent as in species of the next genus.
Holotype SARAWAK: Gunung Mulu Nat.
Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 25, April,
G. Api, 900m, 427550, lower montane forest, BM lymantriid slide 1666.
Paratypes: 1 SARAWAK: Santubong Mt., 100m, 6.ix.1981 (Oxford Far East Exp.), BM
lymantriid slide 2189; 1 BRUNEI: 30-60m,
Labi, lowland forest and secondary veg.
28.7.1979 (Lt. Col. M.G. Allen) BM lymantriid slide 2186.
Geographical range. Borneo.
Habitat preference. Two specimens are from lowland forest, the third from
lower montane forest on limestone.
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