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Varicosia Hampson
Type
species: venata Hampson,
Sri Lanka, Java.
Species
in this genus are relatively delicate, with the forewings twice as long as
broad, pale brownish grey with diffuse transverse fasciae and, over the costal
part to the cell, the veins picked out pale against a darker ground. The
reniform is conspicuous at the posterior edge of this costal zone. The male
antennae are strongly fasciculate in the type species, moderately so in V.
clavifera Prout
stat.
n. The
labial palps have the second segment rather deep, triangular from the scaling,
broadest distad; the third segment is narrower and shorter, directed downwards
from the second.
The male
abdomen has the eighth segment unmodified. There are no phragma lobes evident in
association with the second tergite. In the genitalia, the tegumen has an angle
ventrally, interiorly on each side, and there appears to be an intercalary
sclerite. The juxta may be a slightly modified form of the inverted ‘V’
type. The valves are characterised by a strong process from the costa.
In the
female, the ostium is set within an extensive scobinate zone of the membrane
between the seventh and eighth segments, where the seventh sternite is
distinctly shorter than the tergite. The ductus is sclerotised. The bursa is
ovate, finely scobinate with corrugations, and the scobination may be condensed
also into a small signum centrally on one side (clavifera).
The
genus contains the two species described below; also one rather worn specimen of
the genus was taken in Sulawesi by the author.
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