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Melanothrix alternans Pagenstecher
Melanothrix alternans Pagenstecher, 1890, Dt. ent. Z. Iris 3: 13.
Melanothrix homochroa Grunberg, 1914, Ent. Rundschau, 31: 21, syn. n.
Diagnosis. The male has no white on the forewing, but a diffuse, triangular
ochreous zone on the margin. The female has a white band across the forewing
postmedially, and a row of dark circles in the white marginal zone of the
hindwing.
Taxonomic notes. The males (homochroa) and females (alternans) are associated
through sharing elongation of genitalia that are divergent from those of other
members of the genus. The sternal zone of the female eighth segment is elongate
and finely scobinate, extending into a deep excavation of the seventh segment.
Geographical range. Palawan, Borneo.
Habitat preference. Males have been taken at light in Brunei and the Mulu area,
in hill dipterocarp forest and in wet heath forest (kerangas). The species has
also been taken in the Kinabalu area but no habitat data are available.
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