"Face with appressed scales or short rough scales. Tongue developed or weak. Antennæ in male bi-pectinated, pectinations sometimes short and terminating in fascicles of cilia, apex simple. Palpi shortly rough-scaled. Thorax with small triangular anterior crest, hairy beneath. Femora glabrous; posterior tibiæ in male not dilated. Fore-wings in male without fovea; vein 10 sometimes out of 9, sometimes anastomosing or connected with 9, 11 sometimes out of 10, usually anastomosing with or running into 12, rarely absent. Female semiapterous or apterous."--(Meyrick.) We have one species. {88}HYBERNIA INDOCILIS, Walk. (_Zermizinga indocilisaria_, Walk. 1530. _Hybernia boreophilaria_, Gn., E. M. M. v. 61. _Hybernia indocilis_, Meyr., Trans. N. Z. Inst. xvi. 97.) (Plate IX., fig. 31 [M], 32 [F].) This species has occurred plentifully in the neighbourhood of Christchurch. The expansion of the wings of the male is 1¼ inches, of the female ½ inch. _All the wings are pale grey, speckled with darker grey. The fore-wings have four obscure wavy transverse lines_; the first near the base, the second and third near the middle, rather close together, and the fourth near the termen, much interrupted; there is a series of black dots on the termen. The hind-wings have two very faint transverse lines, and a series of black terminal dots; the termen of the hind-wings is slightly scalloped. The cilia of all the wings are grey. _The female has the wings extremely small and quite useless for flight_; in colour and markings they resemble those of the male, except that the transverse lines are black and sharply defined. The perfect insect appears from July to January. Mr. R. W. Fereday states that the male is found plentifully at rest on the bare ground, amongst _Leptospermum_, and the female on the stems. Described and figured from specimens kindly given to me by Mr. Fereday. Genus 3.--CHALASTRA, Walk. "Face with a slight cone of scales. Palpi rather long, porrected, roughly scaled. Antennæ in male bi-pectinated. Fore-wings with vein 6 from below 9, 7 from below angle of areole, 10 very shortly touching 9, 11 free, 12 very shortly touching 11. Hind-wings normal."--(Meyrick.) (Plate II., figs. 51 and 52.) This genus is represented by one species only. I have made a very careful examination of several denuded specimens of _Chalastra pelurgata_, and I find that in the fore-wings veins 9, 10, and 11 rise almost from a point. Vein 10 afterwards approaches closely to 9, but does not actually touch it, and consequently does not form a true areole. Vein 12 also appears to me to be free. CHALASTRA PELURGATA, Walk. (_Chalastra pelurgata_, Walk. 1430. _Itama cinerascens_, Feld. cxxxi. 1. _Stratocleis streptophora_, Meyr., Trans. N. Z. Inst. xvi. 106.) (Plate IX., figs. 33 and 34 [M] varieties, 35 and 36 [F] ditto; Plate III., fig. 21, larva.)