We have tried to assess the morphological changes in insects under conditions of global warming using the example of three mass species. We analyzed collection funds for 140 years from the same territory in Western Siberia. We found out that the climate of Siberia is systematically drying up and the average temperatures are increasing, and as a result, the species composition of the fauna of Western Siberia changes, as well as the morphology of some insect species. Keywords: Western Siberia, climatic changes, Insects, Pompilidae, Sphecidae, Vespidae References Baghirov, R. T-o. (2014). New data on the spider wasps (Hymenoptera, Pompilidae) from the Western Siberia. Far Eastern Entomologist, (279), 1-10. Baghirov, R.T-o. (2010). New records of digger wasps (Hymenoptera: Sphecidae, Crabronidae) from Western Siberia. Euroasian Entomological Journal, 9(4), 677-680. Baghirov, R.T-o. (2011). First record of the digger wasp Chalybion turanicum (Gussakovskij, 1935) (Hymenoptera: Sphecidae) from Russia. Far Eastern Entomologist, (222), 24-24. Baranchikov, Yu.N., Pet'ko, V.M., Astapenko, S.A., Akulov, E.N., & Krivec, S.A. (2011). Ussurijskij poligraf-novyj agressivnyj vreditel' pihty v Sibiri. Lesnoj vestnik/Forestry bulletin, (4), 78-81. (in Russian) Burdavitcyn, A.T., Dudin, V.A., & Majer, E.I. (1957). Tryohletnij opyt aviahimbor'by s sibirskim shelkopryadom v lesah Tomskoj oblasti. Tomsk. (in Russian). Ioganzen, G.E. (1924). O massovom poyavlenii sibirskogo shelkopryada v g. Tomske. Krasnoye znamya. 15 avgusta. (in Russian). Kerchev, I.A. (2014). Ecology of Four-Eyed Fir Bark Beetle Polygraphus proximus Blandford (Coleoptera; Curculionidae, Scolytinae) in the West Siberian Region of Invasion. Russian Journal of Biological Invasions, 5(3), 176-185. Klimycheva, Yu. Chuzherodnyj koroed - v priposelkovyh kedrovnikah obnaruzhen novyj dlya nashego regiona vreditel'. (2019). Krasnoe znamya, 21 avgusta, tema nomera. (in Russian). Krivets, S.A., Bisirova, E.M., Kerchev, I.A., Pats, E.N., & Chernova, N.A. (2015b). Transformation of taiga ecosystems in the Western Siberian invasion focus of four-eyed fir bark beetle Polygraphus proximus Blandford (Coleoptera: Curculionidae, Scolytinae). Russian Journal of Biological Invasions, 6(2), 94-108. Krivets, S.A., Kerchev, I.A., Bisirova, E.M., Demidko, D.A., Pet'ko, V.M., & Baranchikov, Yu.N. (2015a). Rasprostranenie ussurijskogo poligrafa Polygraphus proximus Blandf. (Coleoptera, Curculionidae: Scolytinae) v Sibiri. Izvestiya Sankt-Peterburgskoj lesotekhnicheskoj akademii, (211), 33-45. Rozhkov, A.S. (1965). Massovoe razmnozhenie sibirskogo shelkopryada i mery bor'by s nim. Nauka. (in Russian). Sevast'yanov, V.V., Ukolova, T.F., & Goldaeva, N.P. (2000). Klimat Anzhero-Sudzhenska. Tomsk: Izdatelstvo Tomskogo universiteta. (in Russian).