for subgenus Trigonidium Trigonidium[1] is a large genus of sword-tail crickets, typical of the tribe Trigonidiini.

Records of occurrence are from Europe, Africa, tropical Asia, Australia and the Pacific islands;[2] many species endemic to Pacific islands including Hawaii have now been placed in the genus Nudilla.

The Orthoptera Species File[2] currently lists five subgenera: Auth: Otte & Alexander, 1983 - Australia Auth: Otte & Alexander, 1983 - Australia Auth: Brunner von Wattenwyl, 1893 - mostly tropical Asia Auth: Rambur, 1838 - Europe, Africa, Asia, Australia, Pacific islands Auth: Chopard, 1925 - Africa, India, Australia