A Guide to Australian Grasshoppers and Locusts enables the identification of adults and nymphs of a little less than half the 750 known species of Australian grasshoppers in two families (Pyrgomorphidae and Acrididae). The introduction provides details on grasshopper habits, biology, habitats, collecting, rearing, preserving as well as an illustrated key to the major groups. The body comprises photographs of the grasshoppers in nature and characteristic structural features necessary for identification.