Distribution and Habitat
This apparently uncommon species is scattered throughout Britain and Ireland, with isolated records as far north as the Outer Hebrides of Scotland. For such a large species it is very under-recorded.
This is a characteristic woodlouse of stables, cow sheds and dairy farms, often found within well-established manure heaps, but also under planks, stones and pieces of manure or amongst straw and other debris. It is typically associated with the common Porcellionides pruinosus and the inevitable Porcellio scaber. It also inhabits churchyards, gardens and allotments, typically within compost heaps and inside glasshouses.
This summary is based on the detailed account in Gregory (2009).