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Ballatha Walker

Type species: laeta Walker, India.

Hyposcota Hampson (type species laeta).

Species in this genus are brown-grey and yellow, sometimes with a slight angle to the hindwing margin. In the venation, the forewing lacks an areole, with radial sector branching being (R2 (R3, R4)). In the hindwing, M3 and CuA1 are stalked and support an angle at the margin in the two mainland Asian species. As in Cacyparis, the third segment of the labial palps is longer and more slender than the second, though not to such an extreme. A brush of androconia is present in males extending posteriorly from the point of origin of CuA2 from the cell on the underside of the hindwing.

In the male abdomen there are no basal tymbal structures, the apodemes being relatively long and slender. The eighth tergite has broad apodemes somewhat like the ears of a rabbit; the sternal margin is not lobed. The genitalia have an elongate tegumen and a short uncus that is flanked by broad lobes. The saccus is large, enclosing what appears to be a mass of androconial scales. The valves are large, tapering distally, and have an unequally bifid process centrally where each fork bears rows of somewhat ‘ariolicine’ peg-like setae. The aedeagus is long, straight, slender.

The female has rather triangular, acute ovipositor lobes. The ductus is very long and slender, leading to a bursa and appendix bursae, both rather pyriform, one, presumably the bursa, half the size of the other, more thick-walled and rugose; the smaller structure contains a small, conical spine, possibly a signum.

The type species ranges from N. India to Burma, and B. aurata Warren occurs in Hainan. The Bornean species described below therefore represents a considerable extension of the generic range.

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