The zoobenthos of the river Tzraudon, the Terek river basin

The paper provides information about the fauna of amphibious insects that live in the river Tsraudon, discusses the ecology of species, the dynamics of species diversity. The collected material in the classes Turbellaria (Tricladida), Crustacea (Amphipoda), Arachnida (Hydracarina), Insecta (Ephemeroptera, Plecoptera, Trichoptera, Odonata, Diptera), Gastropoda (Pulmonata), is represented by 55 species from 29 families; among zoobenthos, Insecta dominates (87 %). All insects except the order Odonata are represented by litoreophilic, stenothermic species.