Katydids

Insects in the family Tettigoniidae are commonly called katydids (especially in North America) or bush crickets. They have previously been known as "long-horned grasshoppers". More than 8,000 species are known. Part of the suborder Ensifera, the Tettigoniidae are the only extant family in the superfamily Tettigonioidea.

Many species are nocturnal in habit, having strident mating calls and may exhibit mimicry or camouflage, commonly with shapes and colours similar to leaves.