Terrestrial Isopods (Crustacea) from the Hawaiian Islands

Information on 27 species of terrestrial isopods from O'ahu and Hawai'i islands is presented. Two species, Olibrinus truncatus and Myrmecodillo pacificus, are described as new. Marinoniscus tomiokaensis is transferred to the genus Olibrinus; Haplophiloscia laevis to Papuaphiloscia; Setaphora okinawaensis and Chaetophiloscia meeusei to Burmoniscus; Philoscia societatis to Australophiloscia; Hybodillo pygmaeus and Lobodillo jacksoni to Myrmecodillo. The following synonyms are proposed: Australophiloscia nomukensis and Philoscia fasciata = Australophiloscia societatis; Venezillo evergladensis = V. parvus; Marinoniscus = Olibrinus; Haplophiloscia = Papuaphiloscia; Marinoniscidae = Olibrinidae. All the species presently known from the Hawaiian Islands are listed, and the composition of the oniscidean fauna of the archipelago is briefly discussed.