This species was first found in Britain at the Royal Botanic Gardens, Edinburgh in 1987.  It has also been collected from St Andrews Botanic Gardens (Read, Corbet & Jones, 2002).  This millipede is endemic to northern Italy where it was originally found in wet grassland (Verhoeff, 1908). It has been reported as an introduction from nowhere other than Scotland (Kime, 1999). Adults have been collected in March, May and November.