Contribution to the knowledge of Ichneumoninae of Siberia and Far East Russia (Hymenoptera, Ichneumonidae) Author Riedel, Matthias text Beiträge Zur Entomologie = Contributions to Entomology 2020 2020-12-01 70 2 365 386 http://dx.doi.org/10.21248/contrib.entomol.70.2.365-386 journal article 10.21248/contrib.entomol.70.2.365-386 0005-805X 4755531 0E34351E-B1AE-4334-AB1C-29C38CEF6318 Tycherus socialis (RATZEBURG, 1852) Material : East Siberia, lake Baikal, Backalo-Lenskiy reserve, 1  2005-07-10 , leg. O. Berlov (coll. Riedel). Distribution : West Palaearctic region, new record for the East Palaearctic region.