First records of introduced slugs of the genus Limacus (Gastropoda: Limacidae) in the Lviv region and their present distribution in Ukraine

The first findings of Limacus flavus in the Lviv region, Western Ukraine, are described. One specimen was shown with an atypical body colouration, without yellow mucus covering it, a monochromatic back and almost complete absence reticulate pattern on mantle, assigned to genus only after dissection. An analysis our own literature data, as well observations from two citizen science databases, showed that both species rapidly expand their ranges Ukraine due anthropochory. maculatus is more common outdoors, while L. basements other enclosed rooms. Most records have been made Crimea, which part natural range maculatus, Kyiv where were introduced. In has reliably registered so far, few anatomically verified at beginning 21st century Lviv, Rivne Khmelnytskyi regions.