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Bornealcis expleta Prout comb. n.
Cleora expleta Prout, 1932, J. fed. Malay States Mus., 17: 105.
Alcis expleta Prout; Holloway, 1976: 81.

Bornealcis expleta

Bornealcis expleta

Bornealcis expleta

The species is small, variable in facies, the males mostly a uniform speckled brown with fasciae only weakly defined darker. The females are slightly larger, more strongly fasciated, especially the distinctively bisinuate postmedial of the forewing; the forewing medial area is often much paler, sometimes accentuated by a strong dark brown edging distal to the postmedial. The asymmetric, four pronged juxta in the male genitalia and the coarse, sparse rings of spines in the bursa of the female are also diagnostic.

Geographical range. Borneo.

Habitat preference. On G. Kinabalu expleta is very common in the zone from 1500-2000m, ranging from 1200m to 2110m. It was taken abundantly in the upper montane zone (similar altitudes) of G. Mulu and has also been recorded in the same zone on G. Api, and from Bukit Retak and Bukit Pagon in Brunei.

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