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Chlumetia dulita sp. n.
Chlumetia dulita ♀ (holotype) |
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♀ 8mm. This species is generally similar in facies to transversa but
the forewing is more contrasty; the postmedial is obtusely angled centrally and
edged bone-white distally; this white edging recurs on the underside as a pale
bar on the costa; the submarginal shade is broken as in transversa but
the most anterior block tapers away to nothing subcostally, demarcating a pale
grey apical area. In these facies characters the species resembles C.
hampsoni Bethune-Baker (New Guinea, Bismarcks, Solomons), a slightly larger
species. The male genitalia of hampsoni have simple, oblong valves, a
small, rather bulbous uncus and a long, tapering, subapically very slender,
apically bulbous saccus; the aedeagus vesica has two short, thick cornuti; the
modification of the eighth sternite is more elongate than in congeners and there
are coremata laterally in the bases of sternites 3 and 4. The females of both
species lack signa and have more general scobination in the bursa, but this is
over the distal half in dulita and in a basal spiral in hampsoni; in
both species the ductus seminalis tapers away from the base of the bursa but it
is more whorled in dulita; the bursa is globular in hampsoni, parallel-sided
in dulita.
Holotype ♀. SARAWAK: Foot of Mt. Dulit,
junction of rivers Tinjar & Lejok, 20.viii.1932, Oxford Univ. Exp. (B.M.
Hobby & A.W. Moore), BM 1933-254, BM noctuid slide 11021.
Geographical range. Borneo.
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