The data was collected from yellow water trays and Johnson suction trap placed in the urban area of Poznań. The aphids were caught from May to October, every decade in yellow trays and from May to December daily by suction trap (high ofl2.2 m) from 1999 to 2001. A total of 120 tree-dwelling aphid species from 8 families were found: 2 from Adelgidae. l from Phylloxeridae, 15 from Pemphigidae, 3 from Anoeciidae, 19 from Phyllaphididae, 10 from Chaitophoridae, 8 from Lachnidae and 59 from Aphididae. Rhopalosiphum padi (L.), Anoecia corni (F.), Hyalopterus pruni (Geoff.) were the most frequent aphid species caught in the suction trap and Rhopalosiphum pad i (L.), Drepanosiphum platanoidis (Schrk.), Myzus persicae (Sulz.), Phyllaphis fagi (L.) and Anoecia c orni (F.) in yellow trays.