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Perixera ochreofusa sp. n.
Perixera ochreofusa 
(holotype) |
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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.
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