20. Specaria josinae (Vejdovsky, 1884)

Nais josinae Vejdovský, 1884

Geographic distribution.

Holarctic species. In the Russian tundra: Murmansk Region (Finogenova 1975; Timm and Popchenko 1978), the Pechora River delta (Baturina 2018), lakes in the More-yu River basin (Baturina and Loskutova 2010), lakes in the Malaya Usa River basin (Baturina et al. 2014b), the Anadyr River basin (Morev 1983b).

Location.

Lake Bolshoy Kharbey (67°35'7.7"N, 62°54'46.9"E; 67°34'3.5"N, 62°52'17.9"E; 67°32'44.2"N, 62°55'22.3"E; 67°32'50"N, 62°52'26.3"E; 67°32'49.9"N, 62°53'40.1"E); Lake Golovka (67°36'21.2"N, 62°56'6.6"E); Lake D1 (67°35'52.8"N, 62°53'52.6"E); Lake K1 (67°36'27.6"N, 62°51'58.4"E; 67°36'22.1"N, 62°52'20.3"E); Lake K2 (67°32'56.1"N, 62°51'39.7"E).

Ecology.

The species was recorded in most lakes of the study area, mainly on silted sand or clay (depths 0.5-1.1 m), rarely deeper on silted stony-sand or detritus (depths 4.2-6.0 m).