Sperchon (Sperchon) glandulosus Koenike 1886

3. Sperchon (Sperchon) glandulosus Koenike, 1886 Distribution: European part: Leningrad region (Sokolow, 1936; Sokolow & Jankovskaja, 1962); Kola Peninsula (Sokolow, 1940; Shubina & Tsember, 2017), Moscow region (Jankovskaja, 1964); Komi Republic (Shubina & Tsember, 2017); Caucasus: North Ossetia (Sokolow, 1927), Krasnodar region (Sokolow, 1940); Western Siberia: Altai region (Zhukova & Bezmaternykh, 2008; Stolbov, 2008); Khanty-Mansi Autonomous Okrug (Stolbov, 2024); Yamalo-Nenets Autonomous Okrug (Stolbov et al., 2025); Eastern Siberia: Irkutsk region, Republic of Buryatia, Zabaykalsky region (Semenchenko & Matafonov, 2014); Sakha Republic (Semenchenko et al., 2010); Far East: Khabarovsk Krai (Sokolow, 1950); Primorsky Krai, Sakhalin (Sokolow, 1940); Chukotka Peninsula (Wainstein, 1976b); Magadan Region, Kamchatka (Wainstein, 1981a); Jewish Autonomous Oblast (Semenchenko, 2005); Amur Region (Semenchenko, 2010). Notes. 1) A number of old references may probably refer to Sperchon thienemanni Koenike, 1907, which was previously considered a variety of this species. 2) Sperchon glandulosus cubanicus Sokolow, 1940 occurs in the same samples as the nominative subspecies and requires re-examination, since its taxonomic status is not sufficiently defined.