Miscellaneous Genera II
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Marcillada Walker

Type species: rubricosa Walker, Cambodia, N.E. Himalaya

Synonyms:
Nasaya Moore (type species hepatica Moore = rubricosa).

Both species in this genus have rather narrow, rich dark brown, slightly speckled forewings with greyer shading in places (patches towards the apex of the wing in the type species). The hindwings are paler, duller brown with a slight angle at CuA2 on the margin. The male antennae are ciliate. The frons has a distinct tuft of scales, but the clypeofrons is unscaled. The labial palps are of the usual catocaline type.

The male abdomen has the eighth sternite much narrower than the tergite, with a pair of short, broad apodemes at the anterior margin; distally it is distinctly bidentate. The tergite is broader than long, with apodemes that are very broad and shallow, almost vestigial. The genitalia have the tegumen and vinculum more or less fused on each side, and the juxta is broad, complex, not obviously of the inverted ‘V’ type. The valves are simple, tongue-like, with a field of small, basally directed setae near the apex. The apex of the sacculus is slightly lobed, the lobe opposite a small, slender, subcostal, ampullate process. The basal part of the valve has a tongue-like process that extends along the base of the costal zone and shows bilateral asymmetry, being longer on the right side. The aedeagus is robust but narrow, and the vesica is small to moderate, with loose clusters of moderate but slender cornuti.

The female (
endopolia Hampson) has the ostium set well within the eighth segment. The ductus is strongly sclerotised and shows distinct asymmetry with a shallow lateral lobe. The corpus bursae is a somewhat elongate oval with a small, narrow, longitudinal and scobinate signum at two thirds.

The biology of the type species was described by Gardner (1947). The larva is pale green with short primary setae. The prolegs of A3 are reduced, those of A4 only slightly so. The crochets are appendiculate as in the Bagisarinae and Cosmophila Hübner, but these groups feed mostly on Malvales. Pupation is in thin silk amongst leaves.

The host plant is
Litsea (Lauraceae).

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