Two species of Nemouridae are described and illustrated from the Nanling Mountains of southern China, including a new species, Nemoura biplatta sp. nov. from Guangxi Zhuang Autonomous Region, and a new regional record species, Amphinemura cordiformis Li & Yang, 2006 from Hunan Province. The morphological characteristics of the new species are compared to related taxa and the new images with supplementary description of A. cordiformis are also provided. © 2021, Pensoft Publishers. All rights reserved.