7. Nais barbata Müller, 1773

Nais barbata Müller. Liang 1964: 646 .

Material. Lhasa River: ST8, 3 spms; ST9, 1spm; Niyang River: ST29, 4 spms; ST32, 2 spms; ST34, 6 spms; Lalu Wetland: ST61, 4 spms.

Remarks. First record from Tibet; also recorded from Xinjing, China (Wang & Cui 2007). This species is distributed in Europe, Asia and North America (Brinkhurst & Jamieson 1971, Wetzel et al. 2006).