An updated synthesis of the Geophilomorpha (Chilopoda) of Asian Russia Author Dyachkov, Yurii V. https://orcid.org/0000-0001-9256-9306 Altai State University, Lenin Avenue, 61, 656049, Barnaul, Russia & Tomsk State University, Lenin Avenue, 36, 634050, Tomsk, Russia & Western Caspian University, Istiglaliyyat Street, 31, Baku, Azerbaijan dyachkov793@mail.ru Author Bonato, Lucio https://orcid.org/0000-0002-8312-7570 Dipartimento di Biologia, Universita di Padova, via U. Bassi 58 b, 35131 Padova, Italy text ZooKeys 2024 2024-04-23 1198 17 54 http://dx.doi.org/10.3897/zookeys.1198.119781 journal article http://dx.doi.org/10.3897/zookeys.1198.119781 1313-2970-1198-17 BDC5B2CD1BB442AE8672E57CC0FBBF6F 9A0A0A5CD22451C7ADAE5C8460C568DC 11. Pachymerium ferrugineum (C.L. Koch, 1835) Geophilus ferrugineus - Sseliwanoff 1884 : 77. Pachymerium ferrugineum - Titova 1969 : 166; Zalesskaja et al. 1982 : 187; Ganin 1997 : 105, 112, 116, 146; Farzalieva 2008 : 61; Sergeeva 2013 : 530; Zuev 2016 : 36; Zuev and Evsyukov 2016 : 424; Bukhkalo et al. 2014 : 73; Volkova 2016 : 673; Dyachkov 2018a : 252; Nefediev et al. 2017a : 11; Dyachkov and Tuf 2019 : 26; Dyachkov 2020 : 79; 2022 : 71; 2023 : 1077; Dyachkov and Nedoev 2021 : 42; Dyachkov et al. 2022 : 73; 2023 : 63; Dyachkov and Farzalieva 2023 : 228. Type locality. Germany: Arklee, near Regensburg ( Bonato and Minelli 2014 ). Diagnosis. A species of Pachymerium with two paired clypeal areas; forcipular coxosternite with chitin-lines, which extend for most part of the length of the coxosternite, but do not reach the anterior margin; both forcipular trochanteroprefemur and tarsungulum with relatively small denticles; 41-69 leg-bearing segments; ventral pore-fields present, also on the posterior part of the trunk, where they are reduced to two paired posterior groups on each metasternite; ultimate metasternite trapezoidal, approximately as long as wide, distinctly tapering towards the posterior margin; all coxal pores sparse from the ventral to the dorsal sides of the coxopleura. Distribution. Western Siberia: Chelyabinsk, Sverdlovsk, Tyumen, and Tomsk oblasts, Altai krai ( Zalesskaja et al. 1982 ; Farzalieva 2008 ; Sergeeva 2013 ; Bukhkalo et al. 2014 ; Nefediev et al. 2017a ). Far East: Amur oblast, Jewish autonomous oblast, and Maritime krai ( Zalesskaja et al. 1982 ; Ganin 1997 ). Outside Asian Russia: Western Palaearctic.