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Pogonopygia Warren
Type species: nigralbata Warren.
Both this and the next genus contain species with an Abraxas-like facies:
white wings with dark grey spots and fasciae, and an orange thorax, also with
black spots. The abdomen is orange or white with black spots. Both contain a few
Oriental species.
The male antennae are ciliate. The type species has an irregularly
defined foveate zone that extends from the anterior cubital vein to posterior to
the anal vein. This is lacking in the only other species in the genus, here
transferred from Dilophodes Warren, but present in typical Dilophodes.
The best distinction between the genera lies in the abdominal
characters. A setal comb is present in males of both genera; the type species of
Pogonopygia has lateral coremata between segments 7 and 8 on the basal
margin of 8, and there are hair tufts ventrally on the distal margin of 7 and
laterally on segment 3.
P. nigralbata and P. xanthura Prout comb. n. share the following male genitalic
features presumed to be apomorphic: a square apex to the uncus (acute in Dilophodes);
a tuft of hair-like setae from the valve costa; a prominent terminal harpe
to the valve sacculus. P. xanthura resembles Dilophodes in having
a clump of deciduous spicules on the aedeagus vesica; in P. nigralbata these
are lacking, but there is general scobination. Dilophodes has an acutely
triangular apex to the gnathus and is distinguished by dorsal projection of the
tegumen as two prominent lobes bearing long, scale-like setae.
In the female genitalia all species have the bursa sclerotised basally,
but in Pogonopygia it is elongate, slightly twisted, with a squarish,
dentate, mushroom-type signum distally. In Dilophodes the signum is
central and consists of a much smaller, more finely scobinate patch that is
pinched up centrally. The larva of the type species is described below.
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