Phrix. denotatus, Walk.
(Scotosia denotata, Walk., 1361; Phibalapteryx parvulata, ib., 1721.)
Male, female.—16–18 mm. Head, palpi, antennæ, thorax, abdomen, and legs dark fuscous, sometimes slightly mixed with pale ochreous; palpi 2; antennæ of male stout, quite naked; apex of tarsal joints ochreous-whitish. Forewings with costa moderately arched, hindmargin obliquely rounded; in male with a small glandular dilation on costa beyond middle, beneath
which is a naked transversely striated longitudinal mark occupying space between veins 10 and 12, these veins being somewhat distorted; rather dark fuscous, with numerous very obscure waved darker lines, more or less marked with black on veins; sometimes one or two irregular whitish-ochreous fasciæ preceding median band; anterior edge of median band undefined, posterior edge from before ⅔ of costa to ⅔ of inner margin, blackish, obtusely angulated in middle, with a marked sinuation above angle, rendered conspicuous by a white crescentic mark following it, sometimes followed by a whitish-ochreous patch: cilia light fuscous, with a darker line, base spotted with dark fuscous, terminal half whitish-fuscous. Hindwings with hindmargin unevenly rounded, sinuate above middle; fuscous, with waved darker lines; posterior edge of median band angulated in middle; cilia as in forewings.
Wellington, Blenheim, Nelson, and Christchurch; in January and February, common.