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Classification of American Colletinae (Hymenoptera, Apoidea). 1
Author: Michener, Charles D.
Call no: RP18682
Year: 1989
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Additions and corrections to the list of nearctic species of Dianthidium (Hymenoptera, Apoidea)
Author: Timberlake, P. H.
Call no: RP7520
Year: 1948
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New records of Perdita from the eastern United States
Author: Timberlake, P. H.
Call no: RP7521
Year: 1952
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Descriptions of new species of Nomadopsis from California and Texas, and of a new allied genus from South America
Author: Timberlake, P. H.
Call no: RP7522
Year: 1952
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New species of the bee genus Andrena in the American Museum of Natural History
Author: Viereck, Henry L.
Year: 1916
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New species of bees of the genus Andrena from Equatorial Africa, in the American Museum of Natural History. Contributions to our knowledge of the bee genus Perdita Smith.
Author: Viereck, Henry L.
Year: 1917
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