TRENDS IN THE DAILY ACTIVITY OF DIFFERENT TYPES OF BLOOD-SUCKING MIDGE IN THE SOUTH OF TYUMEN REGION

Abstract

The studies were carried out in June - July 2005–2015 on the daily activity of blood-sucking midges (Diptera Simuliidae) in the climatic subzones of the south of the Tyumen region. Flights recording was registered in open terrain and in the forest. The midges were collected with an entomological net with removable bags every two hours. At the same time, temperature, relative air humidity, wind speed and precipitation were recorded. The species of the imago bloodsucking was determined according to identification tables (the name has been brought in line with modern lists). The number of bloodsucking midges in the south of the Tyumen region is high in the morning and evening hours, the maximum amount and peak of species diversity are at 7:00 a.m. and from 3:00 to 5:00 p.m. The midges activity depends on the biological characteristics of a particular species. The most photophilous species is Bys. maculatus, it occurs during the day, while Sim. sp. and Sch. pusilla in the morning and evening time. During a day of an attack of six species of bloodsucking midges of the Simuliidae family belonging to the following species was recorded: Byssodon, Schoenbaueria, Boopthora, Odagmia, Agentisimulium, Simulium. The temperature range is represented by four groups: 1. 10 - 30 ° C – B. maculatus, Sch. Pusilla; 2. 10-25 ° C – B. erythrocephala, O. ornata; 3.16 - 30 ° – Sch. nigra, Sim. longipalpe and Sim. Rostratum; 4.16 - 20 ° – Arg.noelleri. The study of the midges spreading is relevant since they are carriers of a number of animals and humans infectious and invasive diseases.