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Oreta bicolor Warren
Oreta bicolor Warren, 1897, Novit zool., 4:16.
Oreta bicolor Warren; Holloway, 1976: 92.

Oreta bicolor

Oreta bicolor

The four Bornean species of the insignis group are easily confused, but O. singapura Warren has bipectinate rather than lamellate antennae, a silver discal chevron on the forewing, with the oblique postmedial most discal in position, concave on the discal side; the markings in the marginal zone of the hindwing are striate, parallel to the postmedial, rather than punctate as in bicolor, perobliquilinea Warren and the new species. These three have the oblique postmedial concave on the tornal side: it is longer in perobliquilinea, meeting the dorsum at one third instead of almost centrally, being continued by a line on the hindwing that is also much more basal. The forewing apex in perobliquilinea is more narrowly and less emphatically falcate. Both named species occur in uniform red forms and forms with extensive yellow on the hindwing as illustrated. The new species is distinguished below.

Geographical range. Sundaland.

Habitat preference. Most records are from the upper montane zone between 1600m and 1800m but the species also occurs less frequently in lowland forest.

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