Amata tetragonaria Walker
1862, J. Linn. Soc. Lond. (Zool.) 6: 87.
Seitz, 1912-1913: 78.
Diagnosis. See previous species. The hindwings are narrower than in the two close
relatives, and there are only two distal yellow spots on the forewing rather
than three (the two close posterior ones of other species have coalesced).
Taxonomic notes. The genitalia resemble those of the Sumatran A. acuminata Snellen
(see Obraztsov, 1955) but the right valve is more deeply triangular. The yellow
markings of the forewings are more extensive.
Geographical range. Borneo, Natuna Is.
Habitat preference. During the Mulu survey most specimens were taken in
the understorey of wet heath forest (kerangas) on a lowland river terrace.
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