A new species of the genus Ditrigona Moore, 1888 (Lepidoptera: Drepanidae: Drepaninae), Ditrigona clavata sp. nov. is described from Guangxi and Guangdong provinces in China. The new species can be distinguished from its congeners by 5 transverse fasciae in the forewing and 4 transverse fasciae in the hindwing. Adults and their genitalia are illustrated. The key for the separation of the species-group D. triangularia by Wilkinson is modified. The type specimens are deposited in the Entomological Laboratory, South China Agricultural University, Guangzhou, China.