There are 28 crickets and grasshoppers found worldwide, consisting of 20 000 species. In Australia 14 of these families are represented with 2827 species present. The Orthoptera are divided into 2 suborders, the Ensifera which includes all crickets and katydids, and the Caelifera which includes grasshoppers. Members of the Ensifera can usually be distinguished by their long antennae and ovipositors of the females. Members of the Caelifera have short antennae and their females do not possess an ovipositor. Follow the links below to find out more about the families of crickets and grasshoppers. Those in bold represent the cricket and grasshopper families present in Australia.