Iowa State University
Iowa State University: Iowa Insect Information Notes Sowbugs and Pillbugs
Pillbugs may look like insects, but they're really crustaceans. This article describes them and their habitat, and describes what to do if they become a nuisance in the home.
Saint Louis Zoo
Saint Louis Zoo: Crustaceans
Discover fun facts and learn about the habitat, diet, and appearance of crustaceans.