Blood-Sucking Diptera Insects (Insecta: Diptera) in Tyumen Region: Species Composition and Features of Seasonal Population Dynamics

Abstract

The article presents the results of the study of the species composition of the fauna of the blood-sucking Diptera insects of the Tyumen region (Russian Federation). The studies were carried out from 2004 to 2022 in three subzones: forest with subzones of southern taiga and aspen-birch forests and forest-steppe. It was discovered that the fauna is represented by 109 species and 4 subspecies: horseflies - 35 species and 4 subspecies, mosquitoes - 41 species, blackflies - 16 species, biting midges - 17 species. The total summer period of insects in this group is 140-170 days. Depending on the meteorological conditions of the springsummer season, the start and end dates of summer may shift by 1-2 decades. The activity of horseflies and blackflies is observed during the daytime, and mosquitoes and biting midges are twilight insects and attack mainly in the morning and evening hours. The main abiotic factors determining the nature of the diurnal rhythm of activity of Diptera insects are air temperature and illumination.