Abstract
Subfamily Tripetalocerinae consist of four genera distributed in Southeast Asia. Clinophaestus gen. nov. (type species: Clinophaestus robustus sp. nov.) and Tripetaloceroides gen. nov. (type species: Tripetalocera tonkinensis Günther, 1938) are described. New tribe Clinophaestini trib. nov. (type genus: Clinophaestus gen. nov.) is established. Diagnosis and key to tribes and genera are given. An annotated list of species is provided. Genus Kraengia Bolívar, 1909 is transferred from Tripetalocerinae to Discotettiginae.