 The species has been introduced to North America where it was first found in 1937 and now is known from six Canadian provinces (British Columbia, Ontario, Quebec, New Brunswick, Nova Scotia, and Newfoundland and Labrador) and 16 states, as well as the District of Columbia, in the United States.It does not appear to have the capability to become an "invasive" pest species in North America, as it lives in leaf litter and forms colonies where the individuals do not tend to spread widely.These gastropods live in forests and humid shady places, in dead wood logs, under stones, on humus and in soil litter, sometimes in colonies, at an elevation of above sea level.