School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing, China Introduction: In recent years, river ecosystem stability has been increasingly threatened by ...

The genus Leptohyphes Eaton, 1882 (Ephemeroptera: Leptohyphidae) is represented by 42 species (Hofmann et al., 1999; Molineri, 2003, 2010; Domínguez et al., 2006 ...