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.
A new species, Eukiefferiella celata sp. nov., and a newly recorded species, E. brehmi Gouin, 1943, are described and illustrated as male imagines. A new synonym is proposed： E. togaeuquinta Sasa ＆ Okazawa, 1992, syn. nov. （= E. brehmi）.
A new species of Paratendipes Kieffer, P. angustus sp. nov., is described and the male is illustrated. P. subaequalis （Malloch, 1915） is recorded in China for the first time.
A new species of non-biting midge（Diptera： Chironomidae）, Microtendipes brevissimus sp. nov.,based on a male from Gutian Mountain in Zhejiang Province is described and illustrated. This new species is characterized by a short anal point, median volsella absent and tergite IX without median seta.
A new species, Polypedilum（Polypedilum） xianjuensis sp. nov. collected from the Xianju National Park, Zhejiang Province is described and illustrated. The new species is characterized by dark brown body coloration, small antennal ratio（0.60–0.88） and superior volsella without lateral seta.
Endotribelos Grodhaus, 1987 is recorded for the first time in China. The adult male of E. redimiculum sp. nov. is described and illustrated based on specimens collected from Zhejiang Province. A key to the males of this genus worldwide is given.
The subgenus Nostocoladius of Cricotopus is recorded in Oriental China for the first time. The detail redeseription of Cricotopus （Nostocoladius） lygropis Edwards is presented. C. （N..） seiryuabeus Sasa, Suzuki ＆ Sakai is treated as a junior synonym of C. （N.） lygropis. A key to the known male imagines in the world of the subgenus Nostocoladius is given.
The genus Stenochironomus from China,including 10 species,is reviewed.Three species,S.koreanus Borkent,S.maculatus Borkent,and S.totifuscus Sublette are re-described and recorded from China for the first time.One species misidentification is corrected.A key to the males of Stenochironomus in China is given.
