The members of the Genera _Ethon_ and _Paracephala_ form galls; the first are short, thickset beetles of a dull coppery tint, with wavy markings on the wing covers. _Ethon corpulentus_ and _E. marmoreum_ make rounded galls upon the roots of _Dillwynia cricifolia_, sometimes as many as twenty on one plant clustering round the base of the stem. _E. affinis_ forms galls upon the stems of _Pultenea stipularis_. _Paracephala cyaneipennis_ forms galls on the branches of the stunted Casuarina (_C. distyla_), growing about Sydney. It is a slender dull metallic green beetle about ⅓ of an inch in length. The Genus _Cisseis_ contains a number of very pretty little metallic tinted beetles, the larvae of which feed in the wood of _Acacias_ and other small shrubs, and the perfect beetles feed upon the foliage. _Cisseis 12-maculata_, a pretty deep blue-black beetle covered with large white spots, is found on the grass tree; _C. leucosticta_, _C. similis_, and _C. maculata_ upon the black wattle. Family 30. False Click Beetles. EUCNEMIDAE. The beetles in this group form a sort of connecting link between the Flower Beetles and the Clicks: many of them are very like the latter, but they cannot jump; they have a large terminal joint in the palpus, and the antennae when resting are hidden in the grooves along the under side of the thorax. Sixteen species are listed in Masters’ Catalogue, all of which, with one exception, are described in Bonvouloir’s Monograph of the family (Annals of the Soc. Entom. France 1871–7). Family 31. Click Beetles. ELATERIDAE. These beetles are found in many different situations, upon flowers, hidden under bark, or in cracks on the tree trunks. They are well known from their habit of flying in to the lamp at night, and falling on their backs go skipping all over the table. They are elongate in form, with slender serrate antennae, and a small head deeply sunk into the thorax, which is rounded in front, truncate on the hind margin and with a slight spine on the edge; while on the under side the thorax is furnished with a process that fits into a groove in the first segment of the abdomen, which enables it to get enough leverage, by pressing the head down when on its back, to jump a considerable distance upward. The larvae are slender, cylindrical, shining brown grubs popularly known as “Wire Worms,” and some European species are said to do considerable damage by eating off the roots of grass and crops.