Abstract—Phyllophagous insect assemblages on birch trees have been studied in greeneries of the cities of
Labytnangi and Salekhard and natural habitats in the environs of these cities in 2007, 2010, and 2013. The
44 recorded species were dominated by insects of the orders Lepidoptera and Hymenoptera (18 and 12 spe
cies, respectively); regarding feeding ecology and mode of life, they were dominated by openliving chewing
phyllophages and miners (19 and 10 species). The urban greeneries and sparse birch forests were colonized
by the same species, but the density of many species in the cities was considerably higher. The species com
position of the communities changed considerably from year to year. The species richness and similarity of
insect assemblages at the studied sites were the highest in 2013. The basic pests of birch in the northern cities
were chewing phyllophages, especially Tenthredinidae sawflies