Pleistocene insects of Western Siberia and adjacent lands

Fossil insect remains from 100 sites assigned to the Pleistocene and Holocene from Western Siberia and adjacent areas of the Ural and Altai Mountains are considered. Most of these locations are assigned to MIS3-1. The beetle faunas from the MISS 5 (Last Interglacial) deposits reflect a climate similar or warmer than present. Latitudinal differentiation in the composition of insect faunas is noted for MIS3 assemblages, with specific “Otiorrhynchus” complexes recorded south of 58°N. These faunas share features with modern communities of the Southeastern Altai. Beetle faunas from the last glacial maximum reflect colder climate; in the south, “Otiorrhynchus” faunas were preserved. Holocene complexes are similar to modern ones in the same territories.