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Nigriblephara semiparata Walker comb. n. 
Acidalia semiparata Walker, 1861, List specimens lepid. Insects Colln Br. Mus., 23: 764.

Nigriblephara semiparata

The ground colour is white, heavily suffused and marked with dark grey and black. The forewing medial area is obscured in both sexes, but in the male the hindwing medial area is often white. The other two species are very similar and best distinguished on genitalic characters. A distinctive feature of semiparata is the presence of deciduous dark, wedge-shaped scales on the exterior of the valves.

Taxonomic notes. The holotype female of semiparata is worn, has been extensively repaired and lacks an abdomen. Hence association of it with more recently collected series from the G. Mulu National Park is somewhat tentative, based on matching of pattern elements still visible and on general rather blackish coloration. Under such circumstances it was considered preferable to designate the new species (below) as the generic type species.

Geographical range. Borneo.

Habitat preference. During the Mulu survey the species was encountered frequently in lowland dipterocarp forest, partially that of low elevations on the limestone G. Api, but also frequently on G. Mulu. Records from alluvial forest were few, and there were none from heath forest.

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