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Gyrtona
obliqualis sp. n.
Nigramma sp.; Holloway, 1976: 20, fig. 131, Plate 7: 88.
 
12-13mm. This species resembles proximalis (10-11mm) in forewing facies but is larger, with a straighter oblique margin to the pale basal zone. It
is also variable, two of the more strikingly marked forms being illustrated in
the Plate, and a more uniform one by Holloway (1976). The male genitalia
resemble those of ferrimissalis Walker in the equality and parallel
arrangement of the valves, but the harpe is larger, more expanded apically, and
the uncus is deeper. In the female genitalia the lamella postvaginalis is
distinctively finely scobinate, and the bursa is elongate, slightly curved,
tapering smoothly towards the base; there is no signum but the scobination is
coarsened slightly centrally.
Holotype . SARAWAK: Gunong Mulu Nat.
Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 3, January, Camp
4, Mulu, 1780m, 453463, [upper montane forest], BM noctuid slide 10646.
Paratypes. l . SABAH: Mt.
Kinabalu, Kamborangoh, 2110m (Banks, Barlow & Holloway)
vii-ix 1965; 1 as holotype but Site 1,
Mulu, 1790m, 452463, BM noctuid slide
11499, 1 BRUNEI: 5520ft, Bukit
Pagon, LP 308, upper montane forest
15-20.ii.1982, BM noctuid slide 11498.
Geographical range. Borneo.
Habitat preference. During the Mulu survey the species was taken
infrequently in upper montane forest on G. Mulu. It occurs on G. Murud, Sarawak,
as well as on Kinabalu and Bukit Pagon.
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