The Genus _Podacanthus_ is represented by 3 fine species. The large pink winged phasma, _P. typhon_, has a wide range from Victoria to Queensland. When resting with closed wings it is of a uniform rich green tint, but when the wings are opened out, the upper surface of the abdomen and the wings behind the frontal stripe are bright rose red. The female measures 5 inches to the tip of the body and over 7 inches across the outspread wings. In this genus the mesothorax is short, the dorsal surface covered with short spined bosses and the metathorax swelling out into a thickened body tapering to the large boat shaped ovipositor. The male is smaller and much more slender. _P. wilkinsoni_ is a gregarious species, appearing in the summer in the New England forests in countless thousands, stripping every leaf off the eucalyptus bushes as they travel along to the south-east, so that all the trees look as if they had been killed by ringbarking, from which habit they have received the name of “Lourie’s Ringbarkers,” Mr. Lourie being the owner of Noundoc Station, where they are very numerous. The female measures about 3½ inches to the tip of the body, which is broad and thickset from the shoulders, of a general uniform bright green tint on the dorsal surface, with the ventral somewhat blackened and roughened. When the wings are expanded the front margin shows the basal part pale orange yellow, and the membranous part behind varying from rich rose red to pink. The male is a more slender insect of a dull olive green tint, about the same length, with the broad wings delicate purple. They appear with well developed wings about New Year, and are depositing their eggs toward the end of February, the first frost killing the last of them off. _Didymuria violescens_ was described and figured in Leach’s “Zoological Miscellanies 1815” as our typical Australian Phasma; Gray again figured it in colours in his “Entomology of Australia” under the name of the “Violet-winged tailed Spectre.” It is a slender species not unlike the last, of a brownish yellow colour, with wings of a deep violet almost red tint; and it has 3 large spines on the thighs of the hind legs. The Genus _Tropidoderus_ contains four species according to the latest catalogue, though there is some doubt whether one or two should not be defined as only varieties of _T. childreni_ described by Gray.