Coleoptera families other than Cerambycidae, Curculionidae sensu lato, Chrysomelidae sensu lato and Coccinelidae. Chapter 8.5

Here we consider 274 alien Coleoptera species belonging to 41 of the 137 beetle families in Europe (Cerambycidae,Curculionidae sensu lato, Chrysomelidae sensu lato and Coccinelidae are treated separately elsewhere).Among the families we consider as having invaded the European fauna, Acanthocnemidae and Ptilodactylidae represent new arrivals. Many species-rich families have surprisingly few aliens, whereas some relatively minor families such as Dermestidae, Nitidulidae and Anobiidae have a relatively high representationof alien species. Since the start of the 19th century, the number of coleopteran aliens introduced into Europe has continued to increase. Alien species colonizing Europe derive from a wide range of geographicregions as well as ecozones, but the most important source area is Asia. The countries with the largest number of alien species established are France, Germany and Italy. The majority have been introduced accidentally via international transport mechanisms. The most important route for importation is stored products andcrops, followed by transport of wood, then horticultural and ornamental plants. Most alien species in these families are found within anthropogenic habitats in Europe. Th e introduction of invasive alien beetles inthese families has had signifi cant economic impacts, particularly as pests of stored foodstuff s, as well as seriousecological impacts. For example, the buprestid species Agrilus planipennis, recently recorded in Russia,is an important potential economic threat which may also impact the biodiversity associated with ash trees