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