CSIC - Museo Nacional de Ciencias Naturales (MNCN)
Abstract
2 láminasThe solitary bees of the genus Macropis Pz. occupy a very isolated
position among other bees, and it is supposed that they represent
only remnants of a group once rich in species and at the present
time near its extinction. Besides three European species there are in
North America five other species of this genus (Friese, 1923).Peer reviewe
