Urban green areas have favourable conditions for the development of phytophagous species, which feed on plants and thus reduce their aesthetic value. The population of plant pests can be limited by parasitoids of the Pimplinae subfamily. The aim of this study was to determine the influence of low, medium, and high anthropogenic pressure on the qualitative and quantitative structure of Pimplinae communities inhabiting urban green areas and to determine the influence of this pressure on the catchability of insects. The research was conducted between 2014 and 2016 in allotment gardens, Botanical Garden and Zoological Garden in the city of Poznań, using the method of catching adult insects in yellow Moericke traps. The research showed that the richness of plant species had the greatestinfluence on the qualitative and quantitative structure of Pimplinae communities, whereas the size of the area, distance from the city centre, and the intensity of air pollution exerted lesser influence.