The Genus _Darala_ is peculiar to Australia; about 30 species have been described; their larvae are short, thick, black, hairy caterpillars often found crawling about in the gardens, and constructing soft fluffy or white silken cocoons attached to the foliage. _Darala ocellata_, one of our commonest species, measures 1½ inches across the wings, and is of a uniform brownish fawn colour, with two black spots in the middle of the fore wings and a pattern of spots or parallel black lines in the central portion. _Darala acuta_ is slightly larger, with very variable markings upon a general greyish fawn to dull yellow ground; the fore wings are broad with an acute point at the extremity. The Wattle-moth, _Teia anartoides_, which in the larval state often appears in the orchards and destroys the apple-tree foliage, is sometimes very abundant. The larvae are short brown hairy grubs with a tuft of hairs standing out in front on either side of the head, and several stiff brushes of grey hairs upon the centre of the back. The males are much smaller than the females, and in the pupal state when hanging up in their loose flimsy cocoons can be easily distinguished. The adult female is wingless, simply crawling on to the top of her cocoon to lay her eggs and die. The male is a handsome little moth about 1 inch across the wings; the fore pair are dark brown marbled with slender lines and black spots, the hind pair bright yellow surrounded with black, and the outer edges yellow; the antennae are large and feather-like. [Illustration: =Fig. 123.=--_Ocinara lewinae_ (Lewin) and Caterpillar.] _Ocinara lewinae_ is a handsome light reddish brown moth with darker lines running round the wings. It was described by Lewin in 1803, who figured it in colours and called it the “Hook Tip.” The larva is a slender caterpillar covered with fine hairs. They are gregarious, and web the leaves of the eucalypts together with a loose, open, silken strand. Family 12. Silkworm Moths. BOMBYCIDAE. In this group I include several families that may be broadly placed together as typical silkworm moths. Some writers divide them into three families; Packard on the other hand adds a number of other well defined groups, such as the Psychidae, Arctiidae, and others, to the Bombycidae. Typical silkworm moths have thick heavy bodies, with small heads furnished with pectinate antennae and an imperfect mouth; the wings are large and often falcate. The larvae are usually fleshy thickset caterpillars covered with scattered tubercles, and are of somewhat sluggish habits; but all form stout silken cocoons. Our silkworm moths are more closely related to the Atlas moths of India, Saturnidae, than to the silkworm moth of domestic fame, _Bombyx mori_, which, originally a native of China, is now bred and cultivated in many parts of the world for commercial silk.