A Review of the American Bees of the Genus Macropis (Hymen., Apoidea)
Published in Psyche: A Journal of Entomology, in 1938, in volume 45, issue 2-3, pages 133-135
Date published:1938
Published in Psyche: A Journal of Entomology, in 1938, in volume 45, issue 2-3, pages 133-135
Date published:1938