Abstract
The diagnostic characters of the Chinese planthopper genus Tetricodes Fennah, 1956 are redefined. Three new species of this genus, T. ansatus Chang & Chen, sp. n. (China: Guangxi), T. parvispinus Chang & Chen, sp. n. (China: Guizhou) and T. similis Chang & Chen, sp. n. (China: Guizhou) are described and illustrated. The female genitalia of the genus is described and illustrated for the first time. A checklist and key to the species of Tetricodes are given. The synonymy of Tetricodes songae Zhang & Chen, 2009 with Tetricodes polyphemus Fennah, 1956, syn. n., is proposed.