|
Pseudalcis Warren
Type species: catoriata Warren.
This genus contains a small number of Oriental species with grey or
white wings marked on the upperside much as in Ophthalmitis, e.g. the
pale-centred discal spots. On the underside, grey shading is restricted to the
margins of the forewing whereas in Ophthalmitis it tends to be
submarginal.
The strongly bipectinate male antennae and triangular fovea resemble
those of Ophthalmitis. There is a setal comb on the third sternite.
The male genitalia have several distinctive features. The gnathus is
weak, vestigial. The valve costa is swollen in a bulbous manner, bearing a dense
array of fine setae; ventral and somewhat distal to this is a setose lobe
against the valve lamia associated with a distally directed spur that has apical
setae. In P. cinerascens Warren and P. albata Warren (Java,
Sumatra), this spur is absent and the setose lobe is very broad; both species
have an unusual trifid uncus rather than the simple, acute uncus of the type
species. The juxta is broad, bifid, the processes of the fork being broad,
blade-like in the type species and the Indian P. renaria Guenée, but
slender, long, rod-like, apically acute and spined in cinerascens and albata.
The aedeagus vesica has a dense, longitudinal band of backwardly directed,
small spines.
In the female genitalia the ductus is short, sclerotised, funnel-like,
the bursa basally a slender tube with longitudinal scobinate corrugations,
distally bulbous with a dentate, mushroom-like signum. In the type species and P.
renaria the lamella postvaginalis is extensive, a pair of broad sclerotised
plates separated by a central longitudinal zone lacking sclerotisation, and with
zones of setae and fine folds marginally (these are more developed in renaria).
<<Back
>>Forward <<Return
to Contents page
|
