Redescription of two species of Needham, 1905 (Plecoptera, Perlidae) and new distribution records of Stark, 1987 in China.

Background: Two species of from Guizhou Province, China, Du, 2000 and Du, 2005 were described with brief morphological descriptions available only in Chinese and original illustrations being somewhat blurry. Recently, we examined type material of these two species and re-described them with clear colour pictures for the first time.

New Information: In this paper, detailed English descriptions and colour pictures of and are provided for the first time. The type locality of Stark is from Vietnam and its geographical distribution is also discussed. Additionally, we also recorded the distribution of Stark, 1987 in Guizhou, Hunan and Jiangxi Provinces of China for the first time and provided a geographical distribution map of this species.