Armadillidium vulgare

Also commonly reffered to as the Common Pillbug, Sowbugs (even though this is an incorrect classification), Roly-Polies and even Wood Lice. They are members of the Isopods, not to be confused with an insect.

Taxonomy

  Kingdom: Animalia 
     Subphylum: Crustacea
        Class: Malacostraca 
           Order: Isopoda
              Family: Armadillidiidae
                 Genus: Armadillidium
                    Species: vulgaris