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Egnasides Hampson
Type
species: rudmuna Swinhoe, Borneo.
This is
a monobasic genus that is superficially similar to Vestura
(p.
311), but differing as described below, particularly in the bipectinate male
antennae. The labial palps of the male are large, somewhat upcurved and slender,
each with a ventral ridge of scales. The male foretibia has a sheath.
In the
male abdomen the eighth segment is unmodified. The genitalia have a rather
bulbous uncus and a slender saccus. The valves are also narrow, tapering, with
the sacculus densely setose along its dorsal margin, terminating in a slight,
angular process. The aedeagus vesica is broad, bilobed, but without elongate
diverticula. Both lobes are coarsely scobinate on one side.
The
ostium of the female genitalia is between the eighth and seventh segments, the
latter slightly modified as described on p. 320, the sternite about three
quarters the length of the tergite. The ductus is as long as the corpus bursae,
narrow, with a longitudinal band of sclerotisation. The bursa is twice as long
as broad, constricted slightly centrally, with the ductus seminalis arising on a
short appendix just basal to the constriction, which is scobinate at that point.
The scobination is intensified just distal to it into a small, boss-like signum.
The rest of the bursa, away from the constriction, lacks scobination.
In
features of the head, foreleg, facies (e.g. compared with Idia
Hübner
or Sinarella
Bryk)
and genitalia structures, the genus appears to be herminiine rather than
catocaline (see Owada (1987) and Holloway et al. (2001)).
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