Unassigned, possibly plesiomorphic genera
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Chrysoscota cotriangulata sp. n.  

Chrysoscota cotriangulata
(x 1.63)

9-10mm, 10-11mm. The forewing is more strongly variegated than in brunnea, with a distinctive paler sequence of a basal streak, a discal triangle and a subcostal one progressing slightly obliquely forward with progression distally. Some species in the New Guinea area are similar, but the pale patches are more separated from each other. The male genitalia have the valves more elongate and narrower than in brunnea, with the saccular process far more gently curved. The aedeagus is longer, the vesica smaller but with coarser scobination.

Holotype . BRUNEI: 300ft, Rampayoh, LP195, GR 960785, lowland dipterocarp forest, 11-19.iii. 1989 (G.S. Robinson), BM arctiid slide 4842.

Paratypes: 4 as holotype; 18 examples ( slide 4843, slide 5465) SARAWAK: Gunong Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.), Sites 1, 7, 8, 11, 13, 14, 15, 23.

Geographical range. Borneo, Sumatra, Java (slide 5185).

Habitat preference. The species is frequent in lowland and lower montane forest, and has been taken as high as 1790m.

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