Two new Harpellales inhabiting the digestive tracts of midge larvae and other trichomycetes from Tianshan Mountains, China.

Two new taxa of gut fungi within order Harpellales (Kickxellomycotina) are described from a stream in the Tianshan Mountains in northwestern China. These include the new genus and species, Sinotrichium chironomidarum J. Wang, S.Q. Xu & Strongman, and the new species, Stachylina tianensis J. Wang, S.Q. Xu & Strongman, both living in the guts of aquatic chironomid larvae. We also extend the geographic range of Smittium rupestre, previously known only from Australia. A Harpellid specimen not fully identified and a species of Paramoebidium (Amoebidiales) also are documented.