Charles D. Michener Books
The Bees of the World
"In extensive introductory sections, Michener examines the evolution of bees from wasps, the relations of the families of bees to one another, the evolution of bees in relation to that of flowering...
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The bee genera of North and Central America (Hymenoptera:Apoidea)
For years entomologists, ecologists, and botanists interested in pollination problems have urged bee specialists to prepare a key for identifying bee genera in North and Central America. Although r...
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