Our study aimed at providing a comprehensive list of Aphididae alien to Europe. A total of 98 species originating from other continents have established so far in Europe, to which we add 4 cosmopolitan species of uncertain origin (cryptogenic). Th e 102 alien species of Aphididae established in Europe belong to 12 diff erent subfamilies, fi ve of them contributing by more than 5 species to the alien fauna. Most alien aphids originate from temperate regions of the world. Th ere was no signifi cant variation in the geographic origin of the alien aphids over time. Th e average introduction rate was 0.5 species per year since 1800. Th e mean number of newly recorded species per year decreased since 2000 but this pattern may change in the following years.