Plotheia nigralba Hampson, 1895, Trans. ent. Soc. London, 1895: 305.
Diagnosis. This is the darkest Bornean species, the dark grey forewings
marked with whitish patches: a triangle on the centre of the costa and a short
bar bisecting the apex. The hindwings are much darker than in any other Bornean
species. The male genitalia have the saccular process very small. The female has
two signa in the bursa at one-third and two-thirds, the more basal one with
Geographical range. N.E. Himalaya, Peninsular Malaysia, Borneo, Sulawesi,
New Guinea and Solomons.
Habitat preference. All four specimens taken in recent surveys were from
250m or below in various types of dipterocarp forest including alluvial and on
Biology. The species has been reared from Castanopsis (Fagaceae) in
New Guinea (Basset, Samuelson & Miller, 1996: 178).
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