This species is one of the smaller Armadillidium in Western Europe, reaching only 8 mm for females (males being smaller). The ground colour varies from dark brown to a mixture of yellow and light brown mottling, females being less uniform and lighter than males. Dark specimens usually show conspicuously pale muscle attachment spots. Epimera are always lighter than the rest of the body. Dorsum with light granulations. The pereionite 1 posterior margin is regularly sinuous.
