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Cryptastria Hampson
Type
species: fuscomarginata Bethune-Baker,
New Guinea.
The
genus contains one species that has a similar build to that of Papuacola
Hampson
but is larger with more irregular, rounded and scalloped wing margins. The
facies of the wings is irregular, cryptic, with a large reniform set within an
angle of the postmedial on the forewing; see also the species diagnosis below.
The underside is more uniform, with narrow, darker fasciae more clearly
delineated.
The male
abdomen has the eighth segment only slightly modified, though the sternite is
twice as broad as the tergite, the latter having a pair of short, broad apodemes.
The male genitalia are robust, the rather angled uncus opposed by a moderate
scaphium. The ventral part of the tegumen on each side is tapered, incurved. The
juxta is of the catocaline type, an inverted V-shape with a rounded exterior
margin to the angle. The valves are broadly based, rather sinuous, with a strong
costa that has a ventrally directed, digitate spur from its interior margin that
converges on a similar digitate process in the centre of the valve. The aedeagus
vesica is broad, simple, but reflexed; there are no cornuti.
In the
female, the ostium is between the seventh and eighth segments. The ductus is
short, slightly tapering, sclerotised with a colliculum. The bursa is elongate,
rather parallel-sided, obtusely angled subbasally, with a small, oblique,
scobinate band centrally within the distal section.
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