_Stigmodera grandis_ sometimes measures 2 inches, and is the largest species found about Sydney; its general colour is dark bronzy brown with the outer edges of the thorax and elytra margined with yellow. The common jewel beetle, _Stigmodera variabilis_, is very abundant when the _Angophora_ is in bloom; its general colour on the under surface, head and thorax is bronzy black, with the edge of the latter and the wing covers bright yellow; the markings upon the latter are most variable; specimens are sometimes thickly barred with black, others without a spot upon them, so that it is difficult to get two alike. _S. macularia_ is purple to black, with the wing covers bright yellow deeply pitted all over with purple dots. _S. jacquinoti_ might be easily mistaken for the last, which it resembles both in size and markings, but the tips of the wing covers are produced into sharp spines; and the markings are coarser; it is a much rarer beetle than the former, which is one of the commonest large species. _S. gratiosa_ is the type of a group from W. Australia, all of a rich metallic green tint with deeply punctured wing covers; it has the head and thorax bronzy green and very finely punctured, with the elytra green and very coarsely punctured; its length is about ½ an inch, and it is short and broad in proportion. This brilliant little beetle is plentiful in some districts, and specimens set in gold are often used for earrings and brooches, for which its solid integument makes it adaptable. _Calodema regalis_ from the scrubs of Southern Queensland and the extreme north of N.S. Wales, is possibly our most beautiful beetle in shape, size, and colour. Measuring nearly 2 inches in length and broad in proportion, the whole of the under surface, head and thorax are rich metallic green, with two conspicuous blotches of dark red on the dorsal surface of the thorax; the wing covers are bright yellow, almost smooth, slightly spined at the tips, with a very fine pencil of green down the sides of the inner edges.