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V. New Species Of Bees, T. D. A. Cockerell
Descriptions Of New Hymenoptera, T. D. A. Cockerell, J. E. Casad
Descriptions Of New Hymenoptera, T. D. A. Cockerell, J. E. Casad
Ca
No abstract provided.
Descriptions Of New Hymenoptera, T. D. A. Cockerell
New Bees Of The Genus Halictus From New Mexico, U.S.A., T. D. A. Cockerell
New Bees Of The Genus Halictus From New Mexico, U.S.A., T. D. A. Cockerell
Ca
No abstract provided.
Ii. New Norrth American Bees, T. D. A. Cockerell
Additions To The List Of U.S. Hymenoptera, T. D. A. Cockerell
Additions To The List Of U.S. Hymenoptera, T. D. A. Cockerell
Ca
No abstract provided.
On Some Insects Collected In The State Of Chihuahua, Mexico, T. D. A. Cockerell
On Some Insects Collected In The State Of Chihuahua, Mexico, T. D. A. Cockerell
Ca
No abstract provided.
Some New Bees Of The Genus Perdita, T. D. A. Cockerell