Midges (<i>Diptera, Simuliidae</i>) as bioindicators of water bodies

The article presents the results of a long-term study (since 2006) of the breeding of blood-sucking midges breeding characteristics (Diptera, Simuliidae) in the rivers of the Tyumen region south. The studies allowed us to identify the breeding sites of four species belonging to four genera of blood-sucking midges are bioindicators Byssodon maculatus Mg., Cnetha verna Rubz., Schoenbaueria pusilla Rub., Boophthora erythrocephala D.G. Where the rare ones are Cnetha verna Rubz. and Boophthora erythrocephala D.G. The density of larvae and pupae in the habitat is insignificant is 5–20 pcs./dm2. Single individuals of the above species were found in the Tura River, which indicates pollution of the reservoir. Due to their high sensitivity to changes in the environment, midges are promising objects for bioindication studies.