The expansion of the wings is ¾ inch. _The fore-wings are pale grey_; there are several irregular black, transverse lines near the base, very broad on the costa; a broad, pale, central area with no distinct markings; _then two very fine, almost straight, parallel, dark transverse lines alternating with two broader white lines, and followed by a very conspicuous black line, this being again immediately followed by a fainter black line_; beyond these lines the wing is darker, with a wavy transverse white line and a row of black terminal marks. The hind-wings are grey with several faint, wavy, transverse lines and a series of darker marks on the termen. The cilia of all the wings are grey. Described and figured from a specimen kindly given to me by Mr. Cohen. Genus 4.--PHRISSOGONUS, Butl. "Face with short cone of scales or smooth. Palpi moderate or short, porrected, more or less rough-scaled. Antennæ in male ciliated or naked. Posterior tibiæ with all spurs present. Fore-wings in male with swelling or tuft or rough scales on costa, vein 5 sometimes distorted or absent; areole simple, 11 running into 12. Hind-wings with vein 8 anastomosing with cell from near base to beyond middle."--(Meyrick.) We have one species in New Zealand. PHRISSOGONUS DENOTATUS, Walk. (_Scotosia denotata_, Walk. 1361. _Phibalapteryx parvulata_, ib. 1721. _Phrixogonus denotatus_, Meyr., Trans. N. Z. Inst. xx. 53.) (Plate VI., fig. 19 [M].) This dull-looking insect is common and generally distributed throughout the country. The expansion of the wings is ¾ inch. _The fore-wings are very dark grey_, with numerous obscure black and pale brown transverse lines; there are several black dots on the veins, and a white mark on the termen near the apex. The hind-wings are pale grey with numerous wavy black lines, especially near the dorsum. _The antennæ are simple in both sexes._ The cilia are dull pink barred with black. The female is slightly tinged with reddish-brown. _The male has a peculiar dilation on the costa, beyond the middle, beneath which is a naked longitudinal mark occupying the space between veins 10 and 12, these veins being slightly distorted in consequence._ The larva, which feeds on the blossoms of the wharangi (_Brachyglottis repanda_), is pale green with a series of elongate triangular brown markings down the back and an obscure series of brown marks on each side. It may be found during the latter end of October and beginning of November, but is extremely inconspicuous amongst its food-plant. The pupa is concealed in a light cocoon constructed of the remains of the blossoms.