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Oenospila altistrix sp. n.
Oenospila strix
Butler sensu Holloway, 1976: 62.

Oenospila altistrix

15-17mm. This species is similar in size and facies to strix and relatives in Sumatra, Java and Bali. The Sundanian species have more punctate red markings on the wing margins. All are most reliably distinguished by characters of the male genitalia. In altistrix the valves are long, narrow, the saccular process tongue-like, strongly scobinate. In an undescribed Sumatran species (slide 17420) the saccular process is weak but the central margin of the valve is strongly sclerotised, with an acute spur. In O. gemmans Prout stat. n. (Java, Bali) the saccular process is again
tongue-like, but barely scobinate and more ventrally placed and obliquely oriented than in altistrix.

Holotype  SARAWAK: Gunung Mulu Nat. Park, R.G.S Exped. 1977-8 (J.D. Holloway et al.) Site 14, February, Camp 2.5, G. Mulu, 1000m, 413461, lower montane forest, BM geometrid slide 16834.

Paratype. 1 as holotype; 1 [SABAH] Mt Kinabalu, Marei Parei, 5000ft, 1929 (H.M. Pendlebury) 1 SABAH: Mt Kinabalu, Park H.Q. 1620m, Cambridge Expedition to Mt. Kinabalu 1965 (H.J. Banks, H.S. Barlow & J.D. Holloway) Brit. Mus. 1968-186, BM geometrid slide 8948; 1 SABAH: Mt Kinabalu, 'Power Station', 1930m, Cambridge Expedition as above.

Geographical range. Borneo.

Habitat preference. All material is from montane forest.

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