Apart from aphids and scales, 52 additional Sternorrhyncha hemipteran species alien to Europe have been identifi ed within Aleyrodidae (27 whitefl y species), Phylloxeroidea (9 adelgids, 2 phylloxerans) and Psylloidea (14 species of jumping plant-lice) in addition to 12 Auchenorrhyncha species (mostly Cicadellidae-8 species). At present, the alien species represent 39% of the total whitefl y fauna and 36% of the total adelgid fauna occuring in Europe. Th e proportion is insignifi cant in the other groups. Th e arrival of alien phylloxerans and adelgids appeared to peak during the fi rst part of the 20 th century. In contrast, the mean number of new records per year of alien aleyrodids, psylloids and Auchenorrhyncha increased regularly after the 1950s. For these three groups, an average of 0.5-0.6 new alien species has been recorded per year in Europe since 2000. Th e region of origin of the alien species largely diff ers between the diff erent groups. Alien aleyrodids and psylloids mainly originated from tropical regions whilst the adelgids and phylloxerans came equally from North America and Asia. A major part of the alien Auchenorrhyncha originated RESEARCH ARTICLE BioRisk A peer-reviewed open-access journalDavid Mifsud et al. / BioRisk 4(1): 511-552 (2010) 512 from North American. Most of these alien species are presently observed in man-made habitats, especially in parks and gardens but alien adelgids are mainly observed in forests because of their association with conifer trees used for aff orestation.

A total of 19 alien longhorn beetle species have established in Europe where they presently account for ca. 2.8 % of the total cerambycid fauna. Most species belong to the subfamilies Cerambycinae and Laminae which are prevalent in the native fauna as well. Th e alien species mainly established during the period 1975-1999, arriving predominantly from Asia. France, Spain and Italy are by far the most invaded countries. All species have been introduced accidentally. Wood-derived products such as wood-packaging material and palettes, plants for planting, and bonsais constitute invasive pathways of increasing importance. However, only few species have yet colonized natural habitats outside parks and gardens. Present ecological and economical impacts, and future trends are discussed.

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A total of 68 psyllid species are listed from the Mercantour National Park in Southeast France, where a targeted collecting campaign was conducted between 2009 and 2012, as part of the project "ATBI+M" Mercantour. The insects were collected using Malaise traps, flight intercept traps and sweep nets to sample in the vegetation. Additional information on distribution, biology and host-plants is provided for each species. Seven species are recorded for the first time from France: Craspedolepta artemisiae

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Les interceptions et introductions en France de Coléoptères Cerambycidae se multiplient depuis quelques années. Deux espèces du genre asiatique Anoplophora ont été trouvées récemment dans l'Ain, l'Ardèche, l'Isère, le Loiret et la Marne. A. chinensis a été systématiquement importé avec des bonsaïs mais un seul foyer a été détecté pour l'instant. A. glabripennis a fait l'objet d'une introduction à Gien (Loiret) dont l'éradication est tentée. La présence en France d'A. glabripennis et A. chinensis était soupçonnée suite à leurs introductions en Autriche et en Italie. Il s'agit d'organismes de quarantaine soumis à une législation rigoureuse car ils sont de redoutables ravageurs des arbres et arbustes sains dans leurs pays d'origine. Leur implantation durable dans notre faune n'est pas certaine pour l'instant mais les incertitudes du résultat des éradications en cours et l'éventualité de foyers oubliés rendent probable leur présence irréversible à court terme. Le genre Anoplophora compte 36 espèces dont certaines peuvent être confondues avec glabripennis et chinensis, elles mêmes difficiles à distinguer sans examen minutieux. Au moins deux autres espèces de ce genre sont susceptibles d'être également importées en France et de s'y acclimater.