This family of short-horned grasshoppers contains 400-500 species which is well represented in warmer parts of the Americas. The group includes some agricultural pests, for example, Romalea microptera, a polyphagous species that is found in southern North America. The members of the Romaleidae can be colourful insects, especially their wings. The family is related to the Acrididae and is characterized by a spine on the inner and outer surface of the tip of the hind tibia. The two basal lobes of the hind femur are approximately equal in size and there is a spine between the front legs.
The following genera and individual species are currently entered in the system: