In the second group we have a very distinctive little banded hawk moth, _Cizara ardenia_, which ranges from New South Wales into Southern Queensland; most of my specimens come from the Illawarra scrubs, N.S.W., where the larva feeds upon the wild vine. Its ground colour is dark brown with narrow grey bands running round and crossing the middle of the wings, with a curious eye spot on the shoulders. The Genus _Chaerocampa_ contains a number of large handsome hawk moths, some of which are introduced species world wide in their range; about 17 are recorded from Australia. The Silver Stripe, _Chaerocampa celerio_, is a common European species, that is well known here. French describes the caterpillar as a vine pest in Victoria; it is a cylindrical greenish to purple tinted grub with eye spots on the hind segments. The moth measures 3 inches across the wings; its ground colour is greyish fawn, with four slender lines of silvery white forming a stripe down the centre of the fore wings, and the body marked with silver spots; the hind wings are bright pink. _C. oldenlandi_, which comes close to this species, feeds upon vines in N.S. Wales. It differs in having no short oblique silvery stripes on the front of the fore wings, hardly any red on the hind ones, and has an unbroken silvery dorsal stripe down the abdomen. _C. erotus_, about the same size, has dark reddish brown fore wings, slightly marbled, and the hind pair yellow, darkened on the hind margins; its larvae sometimes feed upon sweet-potatoes. _C. scrofa_ is a much smaller species of a lighter brown colour, with the hind wings dull brick red, darkest along the hind margin. This is one of our commonest species with a wide range over Australia; the brown small-headed larvae feed upon grass and low herbage. Among our most striking forms are the two species of the Genus _Coequosa_, both about the same size, sometimes measuring up to 7 inches across the wings. _Coequosa triangularis_ is of a reddish brown and grey tint, mottled on the hind wings with bright yellow, the darker brown forming a large angular patch in the centre of the fore wings; _C. australasiae_ is of a light buff or fawn colour, more marbled, with the wedge-shaped blotch merging into the colouration of the tip of the wing; and the hind pair yellow, only edged with brown on the hind margin. The caterpillar of _C. triangularis_, our commoner form, is dull green, with a rough granulated skin and a small elongate head; the tip of the abdomen is furnished with a pair of stout plates used as claspers to cling to its food plant; above this on either side is a black shining bead-like eye, which is only an ornamental process, but this often leads people to think that this is the head end, and in some places it is known as the double-headed caterpillar. It feeds upon the foliage of _Persoonia_ and _Acacia_, and when touched has a habit of swinging its body round, as if trying to strike; when full grown it is enclosed in