Perixera ochreofusa Holloway sp. n.
♂♂ 16-17mm. The facies is virtually indistinguishable from that of ochraria, though the forewings appear slightly longer, the medial fascia more oblique. The coremata on the the male fourth sternite have a distal process as in ochraria. The male genitalia differ as follows: the uncus is square with lateral spurs at the corners, rather than more triangular, serrate, and there is a slender spine associated with the subscaphium. The ornamentation of the valve costa is diagnostically asymmetric, more as in roseofusa, but with a strong tooth on the left valve as well as a pair on the right: roseofusa lacks the former; ochraria has two processes more symmetrically, but the apical one is more part of an even curvature of the costa, less a lateral tooth. The aedeagus and base of the ductus ejaculatorius are strongly convolute: the vesica has a large cornutus as in roseofusa (only moderate in ochraria).
Holotype ♂
SARAWAK: Gunung Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 13, February, Camp 2, Mulu, 500m. 401464 [upper montane forest] BM geometrid slide 18162.
Paratypes
3 ♂♂ NORD BORNEO: Mont Kina Balu 5.8.1903(John Waterstradt), slide 18160.
Geographical range
Borneo.
Habitat preference
The only specimen with altitude data is from hill dipterocarp forest.
Genitalia:
