7. Geophilus proximus C.L. Koch, 1847

Geophilus proximus - Sseliwanoff 1881: 6. 1884: 87; Titova 1969: 165; Zalesskaja et al. 1982: 188; Poryadina 1991: 14; Striganova and Poryadina 2005: 130; Farzalieva 2008: 58; Bukhkalo and Sergeeva 2012: 61; Bukhkalo et al. 2014: 73; Sergeeva 2013: 530; 2014: 72; Volkova 2016: 673; Nefediev et al. 2017a: 9; 2017b: 114; Dyachkov and Tuf 2019: 25; Nefediev 2019: 24; Bragina et al. 2020: 30.

Type locality.

Germany: near Regensburg (Bonato and Minelli 2014).

Diagnosis.

A species of Geophilus with head slightly longer than wide; antennal articles ≤ ~ 1.5 × as long as wide; second maxillary pretarsus claw-like, longer than surrounding setae; forcipular trochanteroprefemur slightly longer than wide; forcipular trochanteroprefemur, femur, and tibia without denticles; forcipular tarsungulum bearing a small basal denticle; 45-55 leg-bearing segments; “carpophagus” pits present, up to as wide as the metasternites; ventral pore-fields present, an entire posterior diamond on the anterior metasternites, absent on the posterior metasternites; metasternite of ultimate leg-bearing segment wider than long; up to a dozen coxal pores on each coxopleuron, all close to the margin of metasternite; pretarsus of ultimate leg pair claw-like; anal pores present.

Distribution.

Western Siberia: "Western Siberia" (Sseliwanoff 1881); Sverdlovsk, Chelyabinsk, Tyumen, Omsk, Novosibirsk, Kemerovo, and Tomsk oblasts, Altai krai, Republic of Khakassia (Zalesskaja et al. 1982; Poryadina 1991; Striganova and Poryadina 2005; Farzalieva 2008; Bukhkalo and Sergeeva 2012; Sergeeva 2013, 2014; Bukhkalo et al. 2014; Nefediev et al. 2017a, 2017b, 2021; Nefediev 2019). Outside Asian Russia: Northern Europe (Bonato et al. 2005).