Tripetalocerinae is a subfamily of groundhoppers or pygmy grasshoppers. There are at least two genera and two described species, found in India, China, Indo-China and Malesia.
Groudhoppers in this subfamily are characterised by having relatively very large antennae, but consisting of only eight segments (other Tetrigidae usually have more than 11).
Two monotypic genera belong to the single tribe Tripetalocerini: