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Sasunaga interrupta Warren ssp. murudensis Prout comb. n
Sasunaga interrupta Warren, 1912, Novit. zool. 19: 15.
Magusa oenistis murudensis Prout, 1926, Sarawak Mus. J., 3: 212.
Magusa oenops Prout, 1928, Bull. Hill Mus. Witley, 2:64, syn. n.
Sasunaga oenistis murudensis Prout; Holloway, 1976: 9.

Sasunaga interrupta

Sasunaga interrupta murudensis

This is the largest of the four Bornean species, the males having the forewing apex strongly produced, and the wings a striate, deep, almost red-black brown; the females have the forewing less produced, more variegated, but a similarly pinkish tinge is present.

Taxonomic notes.
This species is distinct from S. oenistis Hampson (Sulawesi to Fiji). The reniform stigma of the forewing is very much smaller than in that species; where the basal half of the forewing is anteriorly darker (females), then the boundary between the dark and pale halves has a dentation from the former to the latter in oenistis but not in interrupta. In the male genitalia the uncus is apically more angular and the valve sacculus not so expanded dorsally as in oenistis or the related Fijian S. tomaniiviensis Robinson. The Bornean and Sumatran race is darker, pinker and less variegated, particularly in the female, than the typical race from more easterly localities.

Geographical range. Borneo, Sumatra; Java, Bali, S. Moluccas, New Guinea.

Habitat preference. Almost all records have been from upper montane forest, where the species is often common.

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