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A New Bee Of The Genus Perdita From Texas, T. D. A. Cockerell Dec 1905

New Bees Of The Genera Osmia And Andrena, T. D. A. Cockerell Nov 1905

Descriptions And Records Of Bees.— Vi., T. D. A. Cockerell Nov 1905

Descriptions And Records Of Bees.— V., T. D. A. Cockerell Nov 1905

Contributions To The Nautral History Of The Rocky Mountains. I, T. D. A. Cockerell Nov 1905

Some New Eucerine Bees From The West, T. D. A. Cockerell Oct 1905

Descriptions And Records Of Bees.— Iv., T. D. A. Cockerell Oct 1905

Tables For The Separation Of Some Bees Of The Genera Coelioxys And Colletes, T. D. A. Cockerell Oct 1905

Diadasia Patton; A Genus Of Bees, T. D. A. Cockerell Oct 1905

New Bees From Colorado, T. D. A. Cockerell Oct 1905

Descriptions And Records Of Bees.— Ii., T. D. A. Cockerell Sep 1905

Notes On Some Bees In The British Museum, T. D. A. Cockerell Sep 1905

Descriptions And Records Of Bees.— I., T. D. A. Cockerell Aug 1905

Some Bees Collected By The Rev. G. Birkmann At Fedor, Texas, T. D. A. Cockerell Jul 1905

New American Bees, T. D. A. Cockerell Jun 1905

Some Bees Of The Genus Melissodes From The Rocky Mountain Region, T. D. A. Cockerell Jun 1905

Some Bees Of The Genus Nomada From Wisconsin, T. D. A. Cockerell May 1905

Une Nouvelle Abeille Du Mexique, T. D. A. Cockerell May 1905

Three New Bees From The Southwest, T. D. A. Cockerell Mar 1905

The Bees Of Southern California.— Viii., T. D. A. Cockerell Feb 1905

The Bees Of Southern California.— Vii., T. D. A. Cockerell Jan 1905

American Hymenoptera: New Bees And A New Proctotrypid, T. D. A. Cockerell Jan 1905

Bees Of Southern California, T. D. A. Cockerell Jan 1905

Descriptions And Records Of Bees.— Iii., T. D. A. Cockerell Jan 1905

Some American Hymenoptera, T. D. A. Cockerell Jan 1905