Powder Blue Isopod

''Porcellionides pruinosus'' is a cosmopolitan woodlouse that is native to Europe, and is suspected to consist of very closely related species. Ten subspecies are recognised. The species carries ''Wolbachia'' endosymbionts, which is an alpha-proteobacterium that is known to modify the reproduction of their crustacean hosts by inducing cytoplasmic incompatibility or feminisation.