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Perixera argyromma Warren comb. n. 
Phrissosceles argyromma Warren, 1896, Novit. zool., 3:114.
Anisodes argyromma Warren; Holloway, 1976: 64.

Perixera argyromma

This and the next two species share very distinctive facies: the ground colour is pale yellow, with dull grey-brown fasciation and speckling; the hindwing discal spot is enlarged, white with a fine blackish surround, or more heavily blackened with only the hint of a pale centre. The species are best distinguished on features of the male genitalia as discussed below.

Taxonomic notes. The group has a full suite of Perixera features: coremata on both the fourth sternite and basal to the genitalia; a highly convolute aedeagus; vestigial uncus; strong costal processes on the valve. The coremata have a distinctive, curved section apically where the setae are fused.

Geographical range. N.E. Himalaya, Borneo, New Guinea (slide 18181), Bismarcks.

Habitat preference. This is the only montane member of the trio and it appears to be rare. Single specimens have been taken at 1620m and 1930m on G. Kinabalu, and there is a third singleton from 1618m on Bukit Retak, Brunei.

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