8. Nais barbata Mueller, 1774

Geographic distribution.

Holarctic species. Sino-Indian Region and Australia. In the Russian tundra: Murmansk Region (Stalmakova 1974), the Pechora River delta (Baturina 2018), Vaygach Island (Leshko et al. 2008), the Vashutkiny lakes system (Finogenova 1966), Lake Ambarty and some other lakes in the Korotaikha River basin (Popchenko 1978), Lake Bolshoy Ngosovey and lakes in the More-yu River basin (Baturina and Loskutova 2010), the North of Western Siberia (Zaloznyj 1984), the Anadyr River basin (Morev 1983b), the Yamal Peninsula (Stepanov 2017), the Kolyma River basin (Morev 1983a, Morev et al. 1985).

Location.

Lake Bolshoy Kharbey (67°32'48.3"N, 62°53'49.7"E; 67°32'49.4"N, 62°53'6.6"E; 67°33'48.2"N, 62°55'2.6"E; 67°34'34.3"N, 62°52'17.4"E; 67°35'27.5"N, 62°55'30.7"E); Lake Golovka (67°36'9.4"N, 62°56'39.9"E).

Ecology.

The species was recorded on sands, stones with algal cover, as well as on clay and submerged macrophytes (depth 0.5-2.8 m).