Insects in the cricket family Tettigoniidae are commonly called katydids or bush crickets. More than 6,400 species are known. They are also known as long-horned grasshoppers, to distinguish them from the Caelifera, the true or short-horned grasshoppers. Part of the suborder Ensifera, it is the only family in the superfamily Tettigonioidea.

Insects in the cricket family Tettigoniidae are commonly called katydids or bush crickets. More than 6,400 species are known. They are also known as long-horned grasshoppers, to distinguish them from the Caelifera, the true or short-horned grasshoppers. Part of the suborder Ensifera, it is the only family in the superfamily Tettigonioidea.