Resumen de El género Acamptopoeum Cockerell: tres nuevas especies y clave para la identificación de las especies argentinas (Hymenoptera, Andrenidae)
The genus Acamptopoeum Cockerell: three new species and key to identification of the Argentinean species (Hymenoptera, Andrenidae). Three species of the South American genus Acamptopoeum Cockerell are described as new: melanogaster, tintin and calchaqui. Lectotype designations are made for Camptopoeum prinii and C. amargosi Holmberg. A key, illustrations, and the geographical distribution of the Argentinean species are provided. Key words: bees, Calliopsini, Acamptopoeum, taxonomy,Argentina.
