An annotated checklist of Chilopoda from Mongolia Author Dyachkov, Yurii V. 0000-0001-9256-9306 Altai State University, Lenin Avenue, 61, Barnaul 656049 Russia. & Tomsk State University, Lenin Avenue, 36, Tomsk, 634050, Russia. E-mail: dyachkov 793 @ mail. ru; https: // orcid. org / 0000 - 0001 - 9256 - 9306 Author Farzalieva, Gyulli Sh. 0000-0001-6769-0788 Perm State University, Bukireva Street, 15, Perm 614600 Russia. E-mail: g. farzalieva @ yandex. ru; https: // orcid. org / 0000 - 0001 - 6769 - 0788 text Ecologica Montenegrina 2023 2023-08-08 64 221 241 http://dx.doi.org/10.37828/em.2023.64.7 journal article 10.37828/em.2023.64.7 2336-9744 13246195 26. Lithobius ( Monotarsobius ) fugax Stuxberg, 1876 Type locality: “ Krasnojarsk (56°)” ( Stuxberg 1876 ) . Lithobius fugax Stuxberg 1876: 313 ( , ). Monotarsobius kaszabi Loksa 1965: 200 ( 1♂ , 1 ♀ , 2 juv. ); 1978: 111; Eason 1976: 111 ; Zalesskaja 1978: 183 ; Ulykpan 1988: 221 . Monotarsobius fugax Ulykpan 1988: 221 . Lithobius ( Monotarsobius ) fugax – Nefediev et al . 2020: 41 ( 1♀ ); Nefediev & Farzalieva 2020: 194 ( 2♀♀ ; 2♀♀ as cf. fugax ); Nefediev et al . 2021: 40 ( 7♂♂ , 5♀♀ ). Material . Bayan-Ölgii Aimag : 2♀♀ (ASU No. 565), [Bay8], stony stream, 11.VII.2015 , coll. AF; 2 ♀♀ ( SMNG-VNR ), [Bay17], meadow with Salix shrubs and Urtica in stream valley, under stones, 5.VI.2022 , coll. HR & FW; 1♂ , 3♀♀ ( SMNG-VNR ), [Bay18], Larix and Salix , under stones, 07.VI.2022 , coll. HR & FW; 1 ♀ ( SMNG-VNR ), [Bay19], 03.VI.2022 , coll. HR & FW; 1 ♂ , 4 ♀♀ , 1 juv. ♀ ( SMNG-VNR ), [Bay20], mountain slope with Larix , meadow, 07.VI.2022 , coll. HR & FW; 1 ♂ , 1 ♀ ( SMNG-VNR ), [Bay21], under stones, 03.VI.2022 , coll. HR & FW; 1 ♀ ( SMNG-VNR ), [Bay20], 04.VI.2022 , coll. HR & FW; 1♂ ( SMNG-VNR ), [Bay22], river bank, under stones, 2.VI.2022 , coll. HR & FW; 1♂ ( SMNG-VNR ), [Bay15], dry meadow, 03.VI.2022 , coll. HR & FW; 3 ♂♂ , 3 ♀♀ , 3 juv. ♀♀ ( SMNG-VNR ), [Bay23], 05.VI.2022 , coll. HR & FW; 1♂ ( SMNG-VNR ), [Bay10], meadow on river bank, under stones, 10.VI.2022 , coll. HR & FW; 1♂ ( SMNG-VNR ), [Bay24], 04.VI.2022 , coll. HR & FW; 2 ♀♀ ( SMNG-VNR ), [Bay25], dry steppe, under stones, 10.VI.2022 , coll. HR & FW; 1 ♂ ( SMNG-VNR ), [Bay12], meadow on stream valley, under stones, 03.VI.2022 , coll. HR & FW; Khovd Aimag : 3 ♂♂ , 1 ♀ (PSU-660), [KHo7], stony alpine meadow, 22.V.2015 , coll. AF; 4♂♂ , 4♀♀ (PSU-682) and 4♂♂ (PSU-662), [KHo6], stony alpine meadow, 22.V. and 04.VII.2015 , coll. AF, DN; 4♂♂ , 2 juv.♂♂ , 1♀ , 2 juv.♀♀ (PSU-661), [KHo8], gravel on the river bank, 18–21.V.2015 , coll. AF; 3 ♂♂ , 1 juv. ♂ (PSU-663), [KHo5], rocky mountain tundra, 26.VI.2015 , coll. AF; 1 male , 1 female (PSU-681), [KHo3], mountain stony steppe with rocks, 2450 m , 03.VI.2015 , coll. AF; Ulanbaatar city: 1 female (PSU-1107), [UL9], pitfall traps, 30.VII.2008 , coll. TT. Previous records . Bulgan : [BU1]; Ulanbaatar city: [UL7] (as M . kaszabi ); Dundgobi : [DU1]; Khövsgöl : [KHö1] ( Loksa 1965 , 1978 ) aimags. Distribution . Western and Eastern Siberia ( Zalesskaja 1978 ; Nefediev et al . 2020; Nefediev & Farzalieva 2020; Nefediev et al . 2021 ). Remarks . L . kaszabi was synonymized under L . fugax by Eason (1976) . This species is new to the fauna of the Bayan-Ölgii and Khovd aimags.