I found this bug dead in my house in Mississauga, ON, Canada.
I didn't have a ruler around so a regular toothpick was used to show the size.
Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. It only takes a minute to sign up.Sign up to join this community
Yes, that is a pillbug, or "roly-poly", Subphylum, Crustacea, class Malacostraca, family Armadillidiidae. https://en.wikipedia.org/wiki/Armadillidiidae