Three species of the family Perlodidae are newly reported or confirmed for China, Isoperla asiatica Raušer from Arxan, Inner Mongolia Autonomous Region, Isoperla eximia Zapekina-Dulkeit from Changbai Mountain, Jilin Province, and Mesoperlina capnoptera (McLachlan, 1886) from Xinjiang Uygur Autonomous Region. Based on new material, additional taxonomic notes and images of another perlodid stonefly, Rauserodes epiproctalis (Zwick, 1997) is provided.

After reexamining the syntype series of Perlodinella kozlovi Klapálek, 1912, a new species of Perlodinella, P. tibetensis Huo & Du sp. nov. is proposed, and a lectotype is designated for P. kozlovi. Another monotypic genus of Perlodidae, Rauserodes Zwick (1999), is considered as a synonym of Perlodinella in this paper.

The type species of Filchneria Klapálek, 1908, F. mongolica (Klapálek, 1901), is based on a single female collected from Mongolia, but it was considered the same as another species, F. songi from Qinling, China, when the genus Filchneria was proposed. This study narrates the story of these two species, which have been confused for a century. Until now, the distribution of F. mongolica has been confirmed only in Mongolia and Russia, and we recently recorded it for the first time in Inner Mongolia as a new species record in China. Additionally, the genus Sinoperlodes is a junior synonym of Filchneria, as demonstrated by both the morphological and molecular analysis. Phylogenetic analysis based on the subfamily Perlodinae is provided, along with morphological and biogeographic comparisons of Filchneria and its relatives.

Two poorly known species of Kamimuria Klapálek, 1907, K. simplex (Chu, 1929) and K. tienmushanensis Wu, 1938, are redescribed and newly recorded for Mt. Wuyi, Fujian. Kamimuria cheni Wu, 1948 and K. crassispina Wu, 1948 are removed from the species list of Fujian. The morphological variability of K. tienmushanensis from different locations is also discussed in this paper.

A new species of the genus Kamimuria Klapálek, 1907, K. gyracantha sp. nov., from Gansu, Sichuan, and Shaanxi provinces of western China is described. Kamimuria curriei Sivec & Stark, 2008, a species previously known only from Vietnam, is recorded for the first time from Guizhou Zone, China. Illustrations and color images are provided for each species and the new species is compared with related congeners.

A new species of the genus Suwallia Ricker, 1943 (Plecoptera, Chloroperlidae), Suwallia dengbasp. nov., is described from Tibet and Yunnan, southwestern China. A diagnosis and description of the adult habitus and aedeagal structure are illustrated with color images. Similarities in the terminalia with closely related species are discussed. In addition, an updated key to adult males of the Suwallia species of China is provided.