Simocephalus (Simocephalus) mixtus Sars, 1903

(fig. 5 H–M).

A common phytophilous species inhabiting lotic waterbodies of any type in Hunan and Hubei, is abundant in both spring and autumn. Few ephippial females were found in spring in a lake (S24). A cosmopolitan species found in North Eurasia, East Asia, North Africa and North America. In China S. mixtus was recorded in Heilongjiang Province only, but not in the central part of the country (Xiang et al. 2015). However, the species could be misidentified as the widely distributed S. vetuloides Sars, 1898 . For a description see Orlova-Bienkowskaja, 2001.