First records of the alien land planarian Diversibipalium multilineatum (Makino & Shirasawa, 1983) in Veneto and Trentino (North-east Italy).
Several species of alien land planarians have been recently detected in European countries, including Italy. Some of these seem able to spread easily and, potentially, to pose a threat to native fauna. It appears important, therefore, to identify and report promptly any instance within the territory. Here are reported two findings of the Japanese planarian Diversibipalium multilineatum (Makino & Shirasawa, 1983) in northeastern Italy, a predatory species, accidentally spread to many countries through ornamental horticulture. The species has been detected in Portogruaro (Venezia) and Torbole (Nago-Torbole, Trento), although with a very small number of specimens.