Peratophyga hypsidesma sp. n.
10-11mm. In facies this species is intermediate between hypsicyma and
spilodesma, with the dark areas dull red as in the former and the pale
fasciae more regular as in the latter. Males lack a fovea as in hypsicyma. The
male genitalia resemble those of hypsicyma in lacking major cornuti in
the vesica and having the setal lobes of the uncus shoulder-like and the upper
arm of the valves outcurved apically rather than generally sinuous. However, the
valves are narrow, tapering, straight rather than deep, apically rounded with a
scobinate margin. In the female genitalia the ductus and distal lobes of the
bursa are longer than in hypsicyma, the sterigma less strongly
Gunung Mulu Nat. Park, R.G.S Exped. 1977-8 (J.D. Holloway et al.) Site
20, February, Camp 2, G. Mulu, 500m, 401464, mixed dipt. for., BM
geometrid slide 12693.
Paratypes: 3 (slide 15828) BRUNEI: 15m.
Telisai, Sandy heath
forest and Gymnostoma, 3.12.1979 (Lt. Col. M.G. Allen); 3
(slide 15831) BRUNEI:
15m. Daerah Belait, Badas, swamp forest, 25-26 Feb. 82 (Lt. Col. M.G. Allen).
Geographical range. Borneo.
Habitat preference. All specimens are from lowland heath or swamp
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