Dicrotendipes weiqiangensis sp. nov. from Xianju National Park, Zhejiang, China is described and nominated. This new species is morphologically most similar to D. nudus Qi, Lin Wang, 2012. It can be distinguished from the known species in the genus by R_(4+5) without seta and the shape of the superior volsella, which is semi-triangular viewed dorsally and spherical viewed laterally. Diagnostic characteristics of the male imago(e.g., wing, hypopygium, anal point and superior volsella) are illustrated. A key to the males of Dicrotendipes in China is also provided.
Polypedilum (Tripodura) cypellum sp. nov. from Xishan Island, Zhejiang Province is described. The new species is most similar to P. (T.) harteni Andersen & Mendes, 2010 morphologically. It can be distinguished from the known species in this genus by the goblet-shaped superior volsella. Diagnostic characters of the male imago (wing, fore tibial apex, hypopygium and superior volsella) are illustrated.
Stenochironomus xianjuensis sp. nov. from Xianju National Park, Zhejiang Province, China, is described. The new species is morphologically similar to S. koreanus Borkent, 1984. It can be distinguished from known species in the genus by the following combination of characters: wing with two dark spots surrounding RM and FCu; superior volsella short and small, spatulate, with 4 long setae; inferior volsella elongate, with 3 long setae and a slender terminal spine, posterior margin of tergite IX with 8-10 setae and 8 spines.