The terrestrial isopods (Isopoda: Oniscidea) of Greece. 27th contribution: The genus Armadillidium (Armadillidiidae) on the Ionian islands

Based on the revision of the literature, the reinvestigation of type material and the investigation of new collections, 21 species of Armadillidium are reported from the Greek Ionian islands. Eleven species were treated in previous contributions of this series. The diagnostic characters of the ten remaining species are described and illustrated, mostly by SEM-photographs, and the Greek records of these species are mapped.