Key to the families of Orthoptera occurring in Cuba

1. Antennae shorter than body (less than 30 segments), not filiform and ovipositor not elongated. Auditory organ (when present) located on first abdominal tergite........................................................ Suborder Caelifera (2)

- Antennae filiform and longer than body (more than 30 segments) and ovipositor elongated (except in Gryllotalpidae). Auditory organ (when present) located on anterior tibia...............................................Suborder Ensifera (6)