Pill Woodlouse nasatum Armadillidium nasatum

Pill woodlice are able to roll up in a ball when threatened, although there is a small gap where head meets body (unlike pill millipedes). This Pill Woodlouse has a distinctive pattern.

While the pattern is very different from the Common Pill Woodlouse, it resembles the pattern on Porcellio spinicornis, but has a light central line rather than dark. It also has a different tail area. It grows to 12mm long.