Adult common pillbug, Armadillidium vulgare, recently molted with the bluish rear segments not yet fully sclerotized (hardened).

Adult common pillbug recently molted with the bluish rear segments not yet fully sclerotized (hardened). Credit: Whitney Cranshaw, Colorado State University, Bugwood.org<br />Licensed under a <a href="https://creativecommons.org/licenses/by/3.0/us/">Creative Commons Attribution 3.0 License</a>
Credit: Whitney Cranshaw, Colorado State University, Bugwood.org
Licensed under a Creative Commons Attribution 3.0 License