TRIBE ARCTORNITHINI n.
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Arctornis trasiana Collenette comb. n. 
   
Scarpona trasiana
Collenette, 1933, Stylops, 2: 43.


Arctornis trasiana


Diagnosis.
Males are similar to those of marginata in appearance, though larger, paler yellow in ground colour and with a more evenly curved costa to the forewing. The discal spot is larger. The male genitalia have a rather spear- shaped uncus, and the valve costa in the transtillar region has a dorsally directed spine.

Geographical range. Peninsular Malaysia, Sumatra, Borneo.

Habitat preference. The only Bornean specimen seen is from Kuching in the lowlands of Sarawak.

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