The next division contains three genera typical of Australian species. The Genus _Cyclochila_ until lately contained a single species, but Distant has lately described a second from N. Queensland. _Cyclochila australasiae_ is our common large green cicada, called by the children the “Green Monday.” The whole insect is rich green, the colour extending into the nervures of the tegmina; there is a yellow variety not so common, called in consequence the “Yellow Monday”: I have counted as many as 40 of these fine insects resting on the trunk of a small oak-tree in my garden in the early morning. The Genus _Psaltoda_ contains 7 species peculiar to Australia. _Psaltoda moerens_, our common black cicada, is called the “Red Eye” by the Sydney boys on account of the bright colour of the ocelli. It measures over 4 inches across the wings, which are mottled with black on the tegmina, and marked with the same colour on the wings. It frequents the smooth white-stemmed gum trees, and ranges from Brisbane, Queensland to Adelaide, South Australia, and is also found in Tasmania. _P. harrisi_ is a smaller and somewhat variable form both in size and colour; it varies from black to brown and even dull green; the wings are very slightly mottled, and it can be easily distinguished from the “Red Eye” by the more distinct silvery patch on the sides of the body. [Illustration: =Fig. 155.=--_Psaltoda (cicada) moerens_ (Germer). The Common Black Cicada or “Red Eye.”] The members of the Genus _Henicopsaltria_, four in number, are also peculiar to this country. _Henicopsaltria eydouxi_, one of our commonest species, frequents the trunks of the rough-barked gum trees; I have counted over 300 on a single tree on the coast near Gosford, N.S.W. It measures nearly 5 inches across the wings; is of a general mottled light brown and chestnut colour, with the wings infuscated with three zig-zag bands of brown; the opercula are orange red. _H. fullo_, peculiar to W. Australia, is a very distinctive blackish coloured species measuring about 3 inches across the wings; it can be easily identified by its banded wings and the dorsal surface of the abdomen ornamented with a transverse white band about the centre of the body. The Genus _Macrotristria_ now contains 7 species; most of these were originally described in the Genus _Cicada_, and have representatives in all parts of Australia, two coming from W. Australia, and two richly-coloured green species from the tropical forests of N. Queensland, while _Macrotristria angularis_, our common, large, dark brown species, variegated with light yellowish spots on the head and thorax and with deeply infuscated wings, ranges from Adelaide, S.A., to Queensland.