Tilachlidiopsis scarabaei L.S. Olive, a rare stilbellaceous entomogenous fungus in China

Abstract:

[Objective] To investigate and discover some rare and important stilbellaceous entomogenous fungi from China. [Methods] The classical morphological and ecological characters were used for identification of specimens. [Results] A few Tilachlidiopsis specimen parasitic to coleopteran was identified as T. scarabaei L.S. Olive. The morphological characters of T. scarabaei were described as follows: Synnemata about 36 mm long, 1.8 mm wide, dark brown below, white above, sometimes branched, polycephalous. Phialides with palisade arrangement in a compact hymenium-like covering the heads, but terminal or lateral phialides occurring on the simple conidiophores in the stipe close to the heads, mostly conical, rarely clavate, and tapering toward the top, (19.4?25.9) μm×(1.1?2.2) μm. Conidia, mostly elliptical, (2.2?3.2) μm×(1.1?2.2) μm; subcylindric, (4.3?5.4) μm×(1.1?2.2) μm; rarely spherical, 1.1?2.2 μm. [Conclusion] The specimen is reported as T. scarabaei L.S. Olive, which is a new record species in China.