There are two described species in Tettigarcta, one found in mainland Australia and one on the island of Tasmania.

The species are active at night and are attracted to light, and rest under loose bark during the day.

Unlike other cicadas, they do not make loud calls, but produce low intensity sounds transmitted through the substrate they are attached to, similar to other members of Auchenorrhyncha.

[6] These two species belong to the genus Tettigarcta: Data sources: i = ITIS,[1] c = Catalogue of Life,[7] g = GBIF,[2] b = Bugguide.net[3]

This Hemiptera article related to members of the insect suborder Auchenorrhyncha is a stub.