Izatha acmonias

As at 2010 the larvae of this species are unknown. The wingspan is 21–28.5 mm for males and 23–35 mm for females. Philpott described this species as follows:

♂♀. 25-28mm. Head white. Palpi white. Antennae brownish-black. Thorax white, anterior margin, a triangular central anterior mark, and a annulated with white. Forewings moderate, costa rather strongly arched basally, apex rounded, termen gently rounded, slightly oblique; white, markings black; a broad basal band including a minute spot of white next thorax, outer edge nearly straight to fold, thence produced along fold to an acute point, from whence it returns inwardly oblique to dorsum; an irregular fascia from costa at 1⁄4 to fold before 1⁄2, its apex turned inward along fold and almost connecting with basal band, a strong inward tooth beneath costa and a similar outward one at middle; a strong fascia from costa at 1⁄2 to before tornus, having two prominent inward projections, the first beneath costa and the second, which points obliquely downwards, at middle; an irregular spot on tornus at 2⁄3; a series of three spots, the central one twice the size of the others, between central fascia and apex; a small spot beneath first costal spot, and a larger one, touching central fascia, beneath this; a broad inwardly-oblique fascia from apex, somewhat constricted and then expanding as a triangular patch; a series of terminal dot …

This species is endemic to New Zealand and only occurs on the western parts of the South Island.

Much of the life history of this species is unknown. Adults have been recorded on the wing from November to January.

== References ==