Although I have made several examinations of fully denuded wings of _OE. omnivorus_, I have been unable to discover any trace of the additional veins mentioned by Mr. Meyrick. The hair-like scales which clothe the wings of this insect are very long and slender, and might easily be mistaken for a short vein, if placed in the requisite position. I am disposed to think that the examination of undenuded specimens has led to the discrepancy between the results. We have one species. OECETICUS OMNIVORUS, Fereday. (_Liothula omnivora_, Fereday, Trans. N. Z. Inst. x., 260, pl. ix. _Oeceticus omnivorus_, Meyr., Trans. N. Z. Inst. xxii. 212.) (Plate XIII., fig. 6 [M]; Plate III., fig. 26, larva in its case; fig. 25 ditto withdrawn from case.) This interesting species is seldom seen as an imago in the natural state, although the cases constructed by its larva are of common occurrence. Specimens of these cases have been noticed at several localities between Palmerston, in the North Island, and Invercargill, in the South Island, so that apparently the insect is common, and generally distributed throughout New Zealand. The expansion of the wings of the male is from 1¼ to 1½ inches. _The fore-wings are very elongate and narrow. All the wings are blackish-brown, and sparsely covered with scales_, the hind pair being semi-transparent. The body is very hairy, and deep black. The antennæ are broadly bi-pectinate at the base, becoming almost filiform towards the apex. The female insect is apterous, having a close superficial resemblance to a large maggot. The head and thorax are very small, and the legs and antennæ rudimentary. The extremity of the body is furnished with a two-jointed ovipositor, and there are a few scattered yellowish scales on various parts of the insect. Its length is about 1 inch. The eggs of this species are deposited inside the old case, which the female insect never leaves during the whole of her life. The young larva when first hatched is about 1/8 inch in length. Its head and three anterior segments are corneous and much larger than the others, which are rather soft with the exception of the last one. These little {124}larvæ are extremely active, and immediately after hatching leave the old case, and roam in all directions over the tree, letting themselves down from branch to branch by silken threads. They carry the posterior portion of their body elevated in the air, walking whilst doing so by means of their strong thoracic legs.