This is the commonest of our Butterflies, and is found in great abundance throughout both islands from November till April. It is double brooded, and is consequently most abundant in the early summer and in the autumn, few of these merry little insects being seen at midsummer. The most forward individuals of the second brood usually emerge about the middle of March, but the butterflies are very irregular in their appearance at this season. The young larva (Fig. 3b) is much thickened anteriorly, the head being concealed from above by the large thoracic segments. Its colour is pale green, with a pair of long, erect bristles on each segment, a large number of shorter ones being situated on the ventral surface, and behind the head. After the second moult, a brilliant crimson dorsal line is noticeable, but beyond this I have no record, as my larvæ unfortunately died just after completing their third moult. Up to this time they had fed but sparingly on the dock, eating minute holes in the leaves and clinging to them with great firmness. It is much to be regretted that their subsequent history could not be followed, especially as I only succeeded in obtaining the eggs on this one occasion, although I frequently kept females in captivity with this object. Three other species of _Chrysophanus_ occur in New Zealand, viz., _C. feredayi_, common round Nelson, and chiefly distinguished by the olive-green under-surface of its hind-wings; _C. enysii_, which is occasionally met with amongst forest, and may be at once known by its broad black markings and pale yellow colour; and _C. boldenarum_, a little insect uniting the "Coppers" with the "Blue Butterflies," and found in great abundance in certain river beds and shingly places. The western side of Lake {69}Wairarapa is one of the best localities I know of for this curious little species. Family LYCÆNIDÆ. _Lycæna phoebe._ This is the common blue butterfly of New Zealand, which may be observed in great numbers along the roadside on a hot summer's day. Its larva must be very abundant, but has hitherto escaped attention, owing, probably, to its small size. The perfect insect is on the wing from October till May. Group HETEROCERA. Family SPHINGIDÆ. This family is represented in New Zealand by the splendid _Sphinx convolvuli_, an insect I am at present unacquainted with. Family HEPIALIDÆ. _Porina signata_ (Plate IX., fig. 2).