_Xylonychus eucalypti_ is a large cockchafer-like beetle about 1 inch long; it is of a delicate pale grass-green colour; its under surface and legs darker and thickly clothed with fine hairs. This beetle feeds about Sydney upon the foliage of the Swamp Mahogany (_Eucalyptus robusta_), and is not uncommon in early summer. The members of the Genus _Liparetrus_ are small, dark reddish brown, or almost black beetles, often thickly clothed with fine hairs; the wing covers are generally shorter than the abdomen. Many species swarm over the tops of the young gum trees devouring the foliage. Nearly 100 species of this extensive group have been described from Australia, chiefly by Macleay and Blackburn (Proc. Linn. Soc. of N.S. Wales, 1886–1888). _Liparetrus marginipennis_, common about Sydney, is black; it measures under ⅓ of an inch; the elytra, except the basal edges, are dark reddish brown; the whole insect is thickly clothed with light brown hairs that form a fringe round it. _L. hispidus_ is a smaller dark brown beetle, thickly clothed with dull yellow hairs. _Lepidoderma albo-hirtum_ is a large cockchafer; it measures 1¼ inches; all the dorsal surface of the head and thorax and both dorsal and ventral portions of abdomen are reddish brown; ventral surface of head, thorax and legs black. The whole of the upper and portion of the under surface are so thickly clothed with fine pale scales that it has a uniform grey tint. The larva, a large white grub, is a well-known pest to the Queensland sugar planters, for it eats off the roots of the growing cane; they are so numerous in some districts that as much as a shilling a pint is paid for these sugar cane grubs. * * * * * The RUTELIDES comprise a number of large beetles, popularly called Cockchafers; some species swarm out in immense numbers, stripping the foliage off the native bush and sometimes attacking the shade-trees in the gardens. Most of their larvae are large, white, subterranean grubs, either feeding on roots of grass and plants, or living in or under decaying logs. Dr. Ohaus has just published a “Revision des Anoplognathides” 1904, in which he describes 72 species included in 13 genera. _Repsimus aeneus_ has a dark blue to coppery tint; the tip of the abdomen is reddish, and the hind legs are thickened. They are found clinging to low bushes, and are common about Sydney. [Illustration: =Figs. 68.= and =69=.--Life History of the Shining Cockchafer. 68. _Anoplognathus porosus_ (Dalm). 69. Larva. 69a. Pupa.]