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Peratostega punctapex sp. n.
Lomographa indistincta Moore or close; Holloway, 1976: 83.

Peratostega punctapex

17-19mm. In general appearance this species resembles the Himalayan P. deletaria and P. indistincta, but is slightly larger and more uniform in tone, with less definite dark subapical spots or chevrons on the forewing; the fasciae of all three species are more irregular than in coctata, and the subapical spots are often enclosed in a diffuse paler patch. In the male genitalia the valve is longer than in coctata and indistincta and with a strongly developed ventral portion that has two unequal apical spurs. In deletaria the valve is longer still, but the ventral portion is more planar; the uncus is weakly trilobed rather than bilobed. In the female genitalia the bursa is long, narrow; the signum is also elongate, the flange shallow, bilobed.

Holotype . SABAH: Mt Kinabalu, Park H.Q., 1620m vii-ix.1985, Cambridge Expedition to Mt Kinabalu 1965 (H.J. Banks, H.S. Barlow & J.D. Holloway) Brit. Mus. 1968-186.

Paratypes: 2 as holotype; 1 as holotype but Power Station, 1930m, BM geometrid slide 9346; 3  SARAWAK: Gunung Mulu Nat. Park, R.G.S Exped. 1977-8 (J.D. Holloway et al.) Site 15, February, Camp 2.5, G. Mulu, 1000m, 413461, [lower montane forest]; 1 SARAWAK as above but Site 14; 1 SARAWAK as above but Site 25, April, G. Api 900m, 427550, lower montane forest, BM geometrid slide 15663.

Geographical range. Borneo.

Habitat preference. Records during the Mulu survey were from lower montane forest (1000 on G. Mulu, 900m on G. Api). On Kinabalu, records were from 1620m and 1930m.

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