This species and C. callirrhoüs differ somewhat in form of wing from those most nearly allied to them, the forewings being somewhat less dilated and the hindmargin less perceptibly sinuate and more strongly rounded. C. haplotomus differs from all its nearest allies in the absence of the broad white thoracic stripe (only in the much paler C. simplex is this occasionally obsoléte), and in the presence of a complete hindmarginal row of minute-black dots. Several specimens taken by Mr. R. W. Fereday near Lake Wakatipu in January. 7. Cr. callirrhoös, n. sp. Male.—24–27 mm. Head white, with a pale brownish longitudinal spot on face, and posterior margin of eyes ochreous-brown. Maxillary palpi white, towards base externally ochreous-brown. Labial palpi long, white, externally ochreous-brown. Antennæ dark fuscous. Thorax brown-ish-ochreous, a broad central longitudinal stripe and margins of shoulders white. Abdomen ochreous-whitish, more ochreous towards base. Anterior and middle legs greyish-fuscous, posterior legs white. Forewings moderate or rather narrow, costa at first very gently archec, more strongly on posterior half, distinctly sinuate in middle, apex nearly rectangular, hind margin moderately oblique, slightly sinuate below apex, strongly rounded beneath; greyish-ochreous, rather deeper on disc, with a more or less distinct brassy-yellowish tinge; a slender white streak along costa throughout; veins on posterior two-thirds of wing above median streak indicated by slender white lines, partially suffused and confluent on costa about ¾; a slender almost straight central longitudinal white streak from base to hindmargin, slightly sinuate in middle; sometimes a slender white streak along vein 2 towards hindmargin; a narrow white streak, very slender at extremities, along inner margin from base, leaving inner margin at about ¼ and continued very near it to anal angle, posteriorly suffused: cilia shining whitish. Hindwings whitish-grey, somewhat darker posteriorly, hindmargin slightly ochreous-tinged; cilia white. Distinguished from all its allies by the distinctness of the slender white streaks on the veins; from C. haplotomus, which it most nearly resembles, also by the smaller size, and broad white stripe on thorax. I have met with this elegant species only on sandhills near Christchurch; in February and March; Mr. R. W. Fereday has taken it, with other species usually frequenting coast sandhills, at Lake Guyon. 8. Cr. simplex, Butl. (Chilo simplex, Butl., Proc. Zool. Soc. Lond., 1877, 400, Pl. XLIII., 12.) Male, female.—27–32 mm. Head pale ochreous, anterior margin of eyes and a spot on crown more or less whitish. Maxillary palpi white, towards