Studies on North American bees of the genus Hylaeus. 5. The subgenera Hylaeus, S. Str. and Paraprosopis (Hymenoptera: Colletidae)
Published in Contributions in Science, in 1970, in volume 180, pages 1-59
Date published:1970
Published in Contributions in Science, in 1970, in volume 180, pages 1-59
Date published:1970