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Sundadoxa Gen. n.

Type species: multidentata Prout.

The single species included in this new genus was originally assigned to Hypodoxa Prout, an otherwise Australasian genus.

The male antennae are narrowly bipectinate to two thirds. The wings are pale bone colour, blotched, speckled and fasciated with rich brown and black. Typical Hypodoxa have extensive green markings. On the underside the typical Pseudoterpniti markings are suffused with dark dull brown. The nature of the fasciation above and below is similar to that of Hypodoxa. Both genera have raised scales but on the hindwing basal to the discal spot. These are in a long bar in Sundadoxa, three patches in echelon in typical Hypodoxa. Other Hypodoxa, e.g. multicolor Warren have these scales more as in Sundadoxa.

The distinguishing features are in the male abdomen. Both have a pair of setal patches on the third sternite. In the genitalia coremata are present basal to the valves in Sundadoxa but absent in Hypodoxa. The
uncus is vestigial in both, but the socii are close together, parallel in Hypodoxa, well separated, splayed in Sundadoxa. The gnathus is narrow, distally digitate in Hypodoxa, broadly quadrate in Sundadoxa. The valve is narrow with a basal interior spur and a subapical, central, cleaver-like flange in Hypodoxa but broad, with distinct dorsal and saccular lobes, the former with a spur in the centre of the costa in Sundadoxa. The saccus is pronounced in Hypodoxa, small, cruciform relative to the vinculum in Sundadoxa.

In both genera the bursa is narrow, elongate, immaculate, but the ductus is vestigial in Hypodoxa, moderate, robust, fluted and scobinate in Sundadoxa.

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