Three Harpellales that live in one species of aquatic chironomid larva

Two new species of harpellid gut fungi, Smittium fecundum and Stachylina ro busta, were found living in larvae of Psectrocladius sp. (Diptera: Chironom idae) in a high-altitude kettle pond in the Rocky Mountains of Colorado. A third species of Harpellales, Smittium mucronatum, previously known only fi om Psectrocladius sordidellus in southern France, was found co-inhabiting the hindguts of the Colorado Psectrocladius larvae. Several axenic isolates of S. feundum were obtained.