23. Lithobius (Ezembius) proximus Sseliwanoff, 1878

Terra typica: [Russia, Irkutsk Region] Irkutsk (Sseliwanoff 1878).

Lithobius proximus Sseliwanoff, 1878: 23 (♂ ♀).

Lithobius proximus — Sseliwanoff, 1881b: 10 (12 specimens: ♂ ♀); Zalesskaja, 1978: 125; Tuf, 2007: 64; Tuf et al., 2010: 11.

Lithobius (Ezembius) proximus — Eason, 1986b: 58; Farzalieva & Esyunin, 2008: 939 (72 ♂♂, 85 ♀♀); Sergeeva, 2013: 530; Bukhkalo et al., 2014: 71 (430 specimens); Dyachkov, 2017b: 454 (4 ♂♂, 14 ♀♀, 3 juv.); Nefediev et al., 2017a: 116 (2 ♀♀, 3 juv.); 2017b: 218 (12 ♂♂, 13 ♀♀); 2018: 230 (12 ♂♂, 2 ♀♀); 2020a: 38 (3 ♂♂, 7 ♀♀); 2020b: 12 (1 subadult ♂, 1 ♀); Nefediev & Farzalieva, 2020: 188 (numerous specimens).

Lithobius porathi major — Zalesskaja, 1978: 126.

Previous records. Kazakhstan: East Kazakhstan Region —SW Altai Mts, Bukhtarma River Valley [Kz31] (Tuf 2007; Tuf et al. 2010).

Habitat records. “Woods” on 1000 m (Tuf 2007).

Remarks. This species is widespread from Russian Far East (incl. Sakhalin Is.), Siberia, European Russia (incl. Urals) (Zalesskaja 1978; Farzalieva & Esyunin 2008; Sergeeva 2013; Nefediev et al. 2017a, 2017b, 2020a; Nefediev & Farzalieva 2020), westward to Ukraine (Chornyi & Kosyanenko 2003; Kunah 2013) and Poland (Wytwer & Tajovský 2019).