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Episteira
vacuefacta Prout
Episteira vacuefacta Prout,
1931, Novit. zool., 36: 164.
Episteira vacuefacta Prout;
Holloway, 1976: 73.
Diagnosis. This and E. nigrifrons Warren are very similar in facies and
genitalic features. The darker fasciae on the forewings of vacuefacta tend
to be evenly emphasised across the wing or more intense posteriorly, whereas in nigrifrons
they are darker from the prominent discal streak towards the apex and to the
margin over the interior third. In the male genitalia the valve costa is
straight or convex in vacuefacta and concave in the only Bornean male of nigrifrons
dissected, and the saccular flap of vacuefacta is somewhat longer. In
the female, the corpus bursae is ovate in nigrifrons and more pyriform in
vacuefacta.
Geographical range. Sundaland.
Habitat preference. E. vacuefacta has been recorded from G. Kinabalu, G. Mulu
and Bukit Retak over an altitude range of 1600-2110m.
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