Abstract:
A new endemic species of terrestrial isopod, Porcellio garciai sp. n., (Oniscidea: Porcellionidae) is described from Machico, Madeira. The new species belongs to the “Atlantic-group” morphological complex, and has close affinities with P. zarcoi Vandel 1960 from the Madeiran archipelago and P. eserensis Rodríguez & Vincente, 1992 from the Canary islands. Its diagnostic characteristics, affinities, habitat and ecology are discussed and a key to the Porcellio species of the Madeiran archipelago is provided.
