Gymnoscelis semialbida Walker
Eupithecia semialbida Walker, 1866, List Specimens lepid. Insects Colln Br. Mus ., 35: 1678.
Diagnosis
This member of the imparatalis complex is characterised by an extensive white area in the medial zone of the forewing. The genitalia of a much smaller Taiwan female dissected (slide 19043) indicate a close relationship to imparatalis: the specimen may just represent a form of that species. The holotype (Borneo) of semialbida lacks its abdomen but may represent a similarly extreme form of G.confusata Walker. In the light of this, records of semialbida from elsewhere should be reassessed.
Geographical Range
Borneo.
Habitat Preference
No material has been taken in recent surveys. The original material is likely to have been taken in the lowlands.
