Species: Erpobdella monostriata (Lindenfeld et Pietruszynski, 1890)

Nephelis octoculata var. monostriata Lindenfeld & Pietruszynski, 1890

Erpobdella vilnensis (Liskiewitz, 1925) in part

Geographical distribution.

Palaearctic region. This species occurs in Europe from the Netherlands (Haaren et al. 2004) in the west to the Voronezh region of Russia in the east (Utevsky et al. 2015). It has been recently reported in East Kazakhstan (Kaygorodova & Fedorova, 2016). This study reports the first finding in the north of Western Siberia.

Locations.

Schekurya River (64°15'52.35"N, 60°54'23.98"E), Ob River (61°15'27.4"N, 73°20'56.9"E), Saima River (61°14'41.1"N, 73°25'09.5"E), Shaitanskaya River (61°4'50.4"N, 69°28'51.9"E), Mukhrinka River (60°53'42"N, 68°42'51"E), Zhivoy stream (60°53'22"N, 68°41'40"E), Kabaniy stream (60°54'4"N, 68°42'55"E), Okhotnichiy stream (60°56'9"N, 68°41'52"E), Sredniy stream (60°55'24"N, 68°42'46"E), Irtysh River (61°1'21"N, 69°8'20"E; 61°0'58"N, 69°9'26"E), Bolshoi Yugan River (60°17'33.0"N, 73°53'38.0"E), Wachem-peu River (60°16'17.0"N, 73°55'22.1"E).