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 12. Pachymerium pilosum (Meinert, 1870) * Geophilus pilosus Meinert 1870 : 86. Geophilus pilosus - Stuxberg 1876a : 32; 1876b : 315; Sseliwanoff 1881 : 3; 1884: 76; Daday 1889 : 146; Attems 1929 : 324. Geophilus (Pachymerium) pilosus - Attems 1903a : 45; 1903b : 257. Pachymerium pilosum - Muralewicz 1926 : 42; Bonato et al. 2016 . Type locality. Russia: Sakhalin oblast: "Sartung, paa Oen Sacolin" ( Meinert 1870 ) = "Sartung" (see Remarks), Sakhalin Isl. Type series. Syntypes : 2 specimens, both sexes. Deposited in NHMD. Diagnosis. A species of Pachymerium with forcipular coxosternite with very short chitin-lines; forcipular tarsungulum without denticle; 45-49 leg-bearing segments; ultimate metasternite narrow, with subparallel lateral edges; all coxal pores sparse from the ventral to the dorsal sides of the coxopleura. Distribution. Eastern Siberia: Krasnoyarsk krai, Irkutsk oblast ( Stuxberg 1876a , 1876b ; Sseliwanoff 1881 , 1884 ; Daday 1889 ). Far East: Sakhalin oblast (Sakhalin Isl.) ( Meinert 1870 ). Outside Asian Russia: no records. Remarks. Sseliwanoff (1884) reported specimens from "near Baikal", collected by G. Dybovskiy. According to the catalogue of Chilopoda of the ZMMU, these specimens were collected from the Kultuk (urban-type settlement in the Irkutsk oblast, 51°43'N , 103°40'E ). The assignment of this nominal species to the genus Pachymerium is only tentative ( Bonato et al. 2016 ), and is suggested only by the following few characters described by Meinert (1870) : head ~ 1.2 x as long as wide, forcipular coxosternite very broad and with two anterior denticles, forcipules surpassing the anterior margin of the head, coxopleura elongate and with dense coxal pores not only on the ventral side but also on the lateral and dorsal ones, ultimate legs slightly longer than penultimate legs and bearing a claw. The current identity and position of the locality "Sartung" (indicated by Meinert 1870 ) is uncertain.