The Episparis group of genera
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Egnasia sundana Kobes
Egnasia sundana Kobes, 1983, Heterocera Sumatrana, 2: 54.

Egnasia sundana

Egnasia sundana

Diagnosis. The facies is similar to that of overdijkinki except the ground is a richer pale brown, the forewing reniform is conspicuously white, and there is no pale discal mark on the hindwing which is more triangular in shape.

Taxonomic note. Despite a general external similarity to typical Egnasia, the labial palps are shorter, particularly the third segment, and the second has a distinctive dorsal crest. The male antennae have the rather more robust bristle of each flagellomere not conspicuously longer than the rest. The male abdomen has the eighth segment of the framed corematous type, and the genitalia have simple, undivided valves with an unusual curved ridge associated with the base of the costa. In the female, the ovipositor is not of the typical Episparis-group type.

Geographical range. Sumatra, Borneo, Thailand (VK).

Habitat preference. This is a lowland forest species which can be locally frequent, as in the forest near the Danum Valley Field Centre.

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