Abstract
The article is devoted to the study of mosquito fauna in North-West Kazakhstan, accounting for the most dangerous types of mosquitoes for a number of signs of epidemiological danger, and justification of measures to combat them. The content of this work, which was carried out in the summer seasons of 2020 and 2024 in North – West Kazakhstan, in particular in Akmola, Atyrau, West Kazakhstan, Pavlodar, Kostanay, North-West Kazakhstan regions, consisted in determining the species composition and ecology of certain species in various ecological groups in which these regions are distributed, including regional and daily activity of mosquitoes, determining the age composition and life expectancy of populations, determining the places of laying eggs, places of the largest concentration of bloodsuckers, mosquito flight dates. Mosquitoes are one of the most important groups among blood-sucking arthropods from a practical point of view: these insects have added a blood-sucking that is close to man, not only forming the main mass in a number of landscapes within the blood-sucking insects, but also carrying many transmissible pathogens common to humans and animals. The obtained scientific results and concepts make it possible to assess the current state of mosquito populations in North-West Kazakhstan, supplement the data on the species composition of mosquitoes of the region with new information.