Unassigned, possibly plesiomorphic genera
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Darantasia Walker

Type species: cuneiplena Walker, Singapore.

Synonyms: Coutha Walker (type species semiclusa Walker, Indonesia); Peronetis Meyrick (type species xenodora Meyrick, New Guinea).

The striking patterning of this genus, and also of Nishada syntomioides (see Nishada syntomioides) is loosely similar to that of some syntomine Arctiidae, and it is possible that mimicry is involved. The species have been taken by day as well as at light. The wings are marked with yellow or orange bars, streaks or patches on a black ground, though some of the Australian taxa lack extensive black areas, being more yellow and brown. The forewings are rather trapezoid, the hindwings narrow apart from, in the male at least, a produced, rather lobed tornal area. The forewing venation (Fig. 10b) has a rather symmetrical arrangement in the branching of veins around the end of the cell, with M3 and CuA1 stalked as in the Lithosiini, but with venation reduced perhaps by loss of a radial sector vein rather than M2. The male hindwing has a nodular structure bearing scales on Rs within the cell. The male antennae are filiform.


Fig.10b: Darantasia cuneiplena Walker

The male genitalia have an uncus with a bulbous or broad base that articulates in a complex manner with the rather shouldered tegumen that ventrally is reflexed at each side where it joins the vinculum, a broad saccus (distally excavate in Bornean species) and an undivided valve that is distinctly narrower over the apical third. The aedeagus is more strongly sclerotised apically where it narrows into a produced apex; the vesica contains one or two bundles of small cornuti. The eighth sternite is rectangular (broader transversely), with tufts of hair-scales at the distal corners.

The female has a distinctive biarcuate sterigma and a pyriform bursa with two signa in the bulb consisting of patches of coarse spines (small, numerous in cuneiplena, large, few in xenodora).

Apart from the Oriental species referred to below, the genus is restricted to New Guinea, with the greatest diversity, the Moluccas and, with one undescribed species, the Solomons.

A New Guinea species near D. obliqua Hampson has been reared from Psychotria spp. and Versteegia (Rubiaceae) by a team led by S.E. Miller (pers. comm.), and was probably feeding on these hosts rather than browsing on epiphytes.

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