Cobanilla fulgens Warren, 1899, Novit. zool., 6:1.
Cobanilla triumbrata Warren,
1899, Ibid., 6: 2, syn. n.
Oreta thaumalea West, 1932, Novit. zool., 37: 227, syn.
Oreta fulgens Warren; Holloway, 1976: 92.
Diagnosis. Males of this and the next species are rich brownish red with a V-shaped
white discal mark on the forewing (this is seen also in singapura which
is distinguished by the oblique forewing fasciae). O. fulgens is slightly
larger with the forewing less strongly bifalcate, and with the hindwing only
slightly, rather than markedly, darker than the forewing. The females are more
yellow and orange as illustrated, that of fulgens again with less
bifalcate forewing shape and more uniform in tone. The forewing tornus is marked
by two blackish grey spots rather than a more continuous grey and black zone.
Taxonomic notes. The above synonymy was suggested by Watson (1967) but not formalised
because of insufficient material. Only a little more material has accumulated
since that time, but it supports the hypothesis that members of the rubromarginata
group are characterised by strong sexual dimorphism. Genitalia of males from
the Philippines, Sulawesi and the S. Moluccas are somewhat different, probably
indicative of subspecific status.
Geographical range. Borneo, Peninsular Malaysia; Philippines; Sulawesi;
Habitat preference. The species ranges from the lowlands to about 1600m;
during the Mulu survey more specimens were taken on the Mulu transect in hill
dipterocarp forest, though the species also occurs in coastal forest at Seria in
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