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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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