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In Vitro Rearing of Solitary Bees: A Tool for Assessing Larval Risk Factors
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Monophyly and extensive extinction of advanced eusocial bees: insights from an unexpected Eocene diversity

M S Engel1

  • 1Division of Entomology, Natural History Museum and Biodiversity Research Center, 1460 Jayhawk Boulevard, University of Kansas, Lawrence, KS 66045-7523, USA.

Proceedings of the National Academy of Sciences of the United States of America
|February 15, 2001
PubMed

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