The Saroba group of genera
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Tamba sobana Kobes
Tamba sobana Kobes, 1989, Heterocera Sumatrana, 2: 178.

Tamba sobana

. This is a much more uniform pale brown species than capatra, with the narrower pale area of the forewing reniform conspicuous and its postmedial more clearly angled. The orbicular has a conspicuous dark dot just exterior to the curved pale antemedial. On the hindwing, the sides of the postmedial angle are slightly concave distad, and it shares with the next species a diffusely darker brown subbasal patch. The male gentialia are diagnostic, however, identical to those of capatra, so it is possible that the two taxa represent one dimorphic species. The figures in the original description were numbered wrongly, those of sobana being fig 16 (See also Heterocera Sumatrana 12: 224 (2004)).

Geographical range. Sumatra, Borneo.

Habitat preference. Three female specimens seen are from 85 miles above (upstream from?) Pontianak in Kalimantan, probably a lowland locality.

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