Tortricidae. (See also p. 212.)
Cnephasia latomana (Meyr.), Trans. N.Z. Inst., vol. 17, p. 145.
I found this species fairly common on the Mount Arthur Tableland in December, at elevations from 4,000 ft. to 4,500 ft. The type specimen was a female, and, though Mr. G. V. Hudson took both sexes on Gordon's Pyramid in 1889, the male, as far as I am aware, has not been described. In appearance the sexes differ considerably, and it may be useful to briefly indicate the differences. While the ground-colour of the female is almost pure-white, that of the male is densely irrorated with fuscous and ferruginous. The area is also much reduced, so that the space is often almost wholly taken up by the markings. In the female the markings are ochreous-tinged, but in the male they are bright ferruginous. The hindwings of the male are dark fuscous, in strong contrast to the whitish ones of the female. The general effect is to produce a whitish female and a reddish male.
Tortrix argentosa n. sp.
♂♀. 16–17 mm. Head, palpi, and thorax greyish-white. Antennae grey, ciliations in ♂ ¾. Abdomen ochreous-grey-whitish, anal tuft ochreous-white. Legs ochreous-white, anterior pair and spurs infuscated. Forewings
elongate, costa strongly arched, apex pointed, termen rounded, very oblique; silvery white; extreme edge of costa, from base to a varying point, blackish; a black dot in disc at ¾, frequently absent: cilia greyish-white. Hindwings and cilia pale greyish-white.
Near T. indigestana Meyr., but whiter and without any reddish suffusion in disc.
Dun Mountain, at 3,000 ft. Eight males and one female taken flying in the evening among low shrubs and herbage. Holotype (♂), allotype (♀), and a series of ♂ paratypes in coll. Cawthron Institute.