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Derambila
costata Warren
Rambara costata Warren, 1896, Novit. zool., 3:101.
Diagnosis. The wings have a general brownish suffusion, particularly strong on the
forewing costa, as in the previous species, but the fasciae are less distinct
except for the dorsal row of the forewing postmedial that is co-linear with the
hindwing discal mark and a similar dorsal bar. See the discussion of O. saponaria
above for genitalic features.
Geographical range. N.E. Himalaya, Sumatra, Borneo.
Habitat preference. The only Bornean specimen is a female taken by Chey
Vun Khen in a Gmelina arborea plantation at Brumas, in the lowlands of
Sabah.
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