Type locality: [Kazakhstan, East Kazakhstan Region] Urjar Distr., Tarbagatay Mts, 5 km N Kestesken [Taskesken], Karakol River, N47°16', E80°49', ca. 500 m [Kz23] (Farzalieva 2006).
Lithobius (Monotarsobius) insolitus Farzalieva, 2006: 105 (35 ♂♂, 28 ♀♀).
Lithobius (Monotarsobius) insolens — Dányi & Tuf, 2012: 27 (nom. nov.); Nefediev et al., 2017a: 116 (4 ♂♂, 3 ♀♀, 3 juv.), 2017b: 221 (6 ♂♂, 12 ♀♀, 1 subadult ♀, 1 juv.), 2018: 233 (> 100 ♂ ♀); Nefediev & Farzalieva, 2020: 195 (36 ♂♂, 33 ♀♀); Dyachkov, 2017b: 454 (1 ♂); 2019: 15 (4 ♂♂, 3 ♀♀).
Previous records. Kazakhstan: Almaty Region —Dzhungarian Alatau Mts, Koksu River Canyon [Kz5] and East Kazakhstan Region —Tarbagatay Mt. Range, Karakol [Kz23], Urjar [Kz24], Kyzylbulak [Kz25], Sholakterek [Kz26, Kz27] river valleys, Kara-Cheru Mts [Kz47*] (Farzalieva 2006), Saur Mts, Tas Mt. Range [Kz29], Altai Mts, Bukhtarma River Valley [Kz30] (Dyachkov 2019).
Habitat records. Riverine forests: Salix, Populus etc. with Rosa, Lonicera etc. bush on 500 m, Populus, Malus, Salix on 1100–1200 m; forests: Betula, Populus, Picea etc. on 1300–1400 m, Populus, Malus, Salix etc. with Rosa, Lonicera etc. bush on 1000 m, Populus, Malus, Salix etc. with Rosa, Lonicera, Amygdalus on 850 m; higly disturbed Populus forest with Salix, Rosa, Lonicera, Crataegus on 1200 m; stony montane tundra (Farzalieva 2006); unknown habitats on 1400, 2230– 2400 m (Dyachkov 2019).
Remarks. Known from W Siberia (Russia: Omsk and Altai Regions, and Republic of Altai) (Nefediev et al.
2017a, 2017b, 2018; Nefediev & Farzalieva 2020).