Background: The genus Uraecha Thomson, 1864 is an Asiatic genus. In China, Uraechaangusta (Pascoe, 1856) is the most common species and it is widely distributed in the southern part of the country. Two species, U.angusta and Uraechaobliquefasciata Chiang, 1951, are distributed in Guizhou Province of China. The type locality of the latter is Guiyang, the capital of Guizhou Province.
New information: Uraechanigromaculata sp. n. is described and illustrated. A diagnosis is presented to distinguish this species from its close relatives. It is the third species of the genus Uraecha reported from Guizhou Province.
Keywords: Longhorn beetles; Natural Nature Reserve; Xishui; taxonomy.
Sheng Liang, Liang Guo, Weicheng Yang, Shulin Yang.