Hoverflies (Diptera, Syrphidae) in Agrolandscapes of St. Petersburg and Leningrad Province

摘要

A total of 57 species from 32 genera of hoverflies (Diptera, Syrphidae) were found in the agricultural landscapes of St. Petersburg and Leningrad Province. One species, Cheilosia vulpina (Mg.), was recorded in the region for the first time. The largest numbers of species occurred at forest and field edges covered with wild grasses and shrubs, while 21 species of hoverflies were recorded in crops. The species most commonly found in crops were representatives of the genera Melanostoma , Sphaerophoria , and Platycheirus whose larvae feed on aphids.