Green Cellar Slug

This species' original range is thought to be the Caucasus region and the Black Sea coast, so it may be native where it occurs in: Romania, Bulgaria, Ukraine, Turkey, southwestern Russia, Armenia, Azerbaijan, and Georgia. It is considered an introduction in:

Great Britain; dramatic increase in 21st century, replacing L. flavus Island of Ireland; earlier replacement of L. flavus than in Britain Greece (uncertain identification) Canary Islands Germany Netherlands Czech Republic Hungary Belarus Kyiv in Ukraine Saint Petersburg and Astrakhan in Russia Mitochondrial DNA sequences of new colonies in Hungary and the Czech Republic are identical to a haplotype common in the British Isles, which was colonised in the 19th century, suggesting that that may have been the intermediate source. A sequence from Germany is also very similar to this, whereas Ukrainian and Georgian sequences differed much more. In its native range it is a forest species. Elsewhere it is found in synanthropic habitats like L. flavus, but much more commonly than that species in woodland and farmland, particularly under logs.