TRIBE BAPTINI
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Tasta montana sp. n.
   
Tasta micaceata Walker sensu Holloway, 1976: 84, part (fig 666).


Tasta montana
(holotype)


15-17mm, 14-15mm. This is a large, dark species that can be distinguished primarily by the large, circular ocellus with a relatively narrow yellow ring and by the male genitalia where the aedeagus vesica has a small bundle of short, blunt cornuti. The process on the vinculum is deep, with a relatively shallow ‘U’ shaped depression dorsally. The major digitate processes on the valve are arranged in a short arc as in micaceata. T. apluta Prout, represented by the holotype female from G. Kerinci in Sumatra, has more distinct fasciation and discal mark on the forewing, and a relatively much smaller ocellus on the hindwing.

Holotype . SABAH: Mt Kinabalu, ‘Power Station’, 1930m vii-ix 1965, Cambridge Expedition to Mt Kinabalu 1965 (H.J. Banks, H.S. Barlow & J.D. Holloway) BM geometrid slide 10551.

Paratypes: 5 as holotype (slide 9366); 2 SABAH: Mt Kinabalu, Park H.Q., 1620m vii-ix 1965, Cambridge Expedition to Mt Kinabalu 1965 (H.J. Banks, H.S. Barlow & J.D. Holloway) BM geometrid slide 9367.

Geographical range. Borneo.

Habitat preference. The species is common in upper montane forest (1200- 1930m) on G. Kinabalu and G. Mulu.

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