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Checupa curvivena Prout
Checupa curvivena Prout, 1924, Bull. Hill. Mus. Witley, 1: 414.
Checupa curvivena Prout; Holloway, 1976: 10.

Checupa curvivena


The large size and strikingly marked green and brown forewings distinguish this species from other Bornean apameine Amphipyrinae. 

Taxonomic notes.
The species is more strikingly contrasted in forewing pattern than the type species and the very similar (possibly conspecific) equifortis Prout (Sumatra, Java); the cucullus is not expanded apically and the large coronal spine is relatively much larger; the distal angle of the sacculus is more acute; the uncus 'cup' is larger and there is a long corema between the distal angle of the sacculus and the cucullus. A specimen from Sulawesi (slide 14015) has intermediate facies and male genitalia closer (a corema is present) to those of curvivena but the distal angle of the sacculus is less acute. It, with a taxon in the Philippines (three females from Luzon seen), may be best treated as a subspecies of curvivena but more material is needed.

Geographical range. Sundaland; Sulawesi, Philippines. 

Habitat preference.
This species is usually only abundant in upper montane forest (above 1000m) but a few individuals have been taken in lowland forest in Brunei.

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