Mosquitoes are the most common insects that seriously affect the quality of life in humans. It is common knowledge that mosquitoes are insects that can be carriers of many infectious diseases. Invasive mosquitoes in Europe belong to the genus Aedes and easily adapt to the environment that people have changed, e.g. they lay eggs in discarded buckets, tires, they found food on a large number of hosts and they survive in the European climate. The most invasive species are the Asian tiger mosquito (Aedes (Stegomia) albopictus Skuse, 1894), the Japanese mosquito (Aedes (Finlaya) japonicus Linnaeus, 1762) and the Egyptian mosquito (Aedes (Stegomyia) aegypti Theobald, 1901). By monitoring the number of individuals, type and distribution of mosquitoes, we obtain results by which we can adopt timely and valid disinsection measures, all with the aim of reducing the number of these invaders and vectors of infectious diseases. The research was conducted in the area of the city of Osijek in the 2021 season with the help of standard and sticky oviposition traps with the aim of determining the presence and number of invasive mosquitoes of the genus Aedes, and checking efficiency of sticky oviposition trap in regards to standard oviposition trap. The initial phase of the research was marked by the absence of individuals and eggs, after which there is an increase in the number of traps. In addition to the monitoring conducted in the area of the city of Osijek, the data of the National Monitoring of Invasive Mosquito Species from the Brod-Posavina County were also compared.