Northernmost records (Fig. 3a). 62°3 ′ 30.4 ″ N, 36°39 ′ 18.26 ″ E, RK, Pudozh Distr. (Lobkova, 1964); 64°32 ′ 23.68 ″ N, 40°30 ′ 56.71 ″ E, AP, Arkhangelsk (Sharkov, 1982); 64°16 ′ 1.87 ″ N, 57°37 ′ 6.86 ″ E, Komi, Vuktyl Distr., Ust’ -Shchugel (Panyukova & Ostroushko, 2017).
Distribution. NWR: AP, Komi, LP, NP, RK, SPb, VP. Adjacent countries: Sweden, Finland, Latvia, Lithuania and Belarus. Europe (ranging northward and westward to Poland); the Holarctic.