Updates to the bee fauna of Portugal with the description of three new Iberian Andrena species (Hymenoptera: Apoidea: Anthophila).

Portugal is home to a rich but understudied bee fauna that was recently comprehensively documented for the first time. As part of ongoing work to improve the knowledge of Portuguese bees, efforts have been made to survey poorly recorded parts of the country and to continue to review existing material in museum collections. These efforts have resulted in 28 species newly discovered in Portugal, as well as eight species added from the literature and two taxa recently raised to full species status.