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1904
Report of the Entomologist, Clarence P. Gillette, Lawrence Bruner, and T. D. A. Cockerell; Bulletin No. 94, Report of Entomologist Agricultural Experiment Station of Colorado Agricultural College for 1904
1903
A Catalogue of the Bees of California, T. D. A. Cockerell; Psyche
Additions to the Fauna of Mexico (Bees and Coccidæ), T. D. A. Cockerell; The Entomologist
A New Bee of the Genus Andrena, T. D. A. Cockerell; Entomological News
A New Bee of the Genus Andronicus, T. D. A. Cockerell; Bulletin of the Southern California Academy of Sciences
A New Oak-Gall, T. D. A. Cockerell; The Canadian Entomologist
Bees of the Genus Nomada From California, T. D. A. Cockerell; Proceedings of the Academy of Natural Sciences of Philadelphia
New American Hymenoptera, mostly of the Genus Nomada, T. D. A. Cockerell; Annals and Magazine of Natural History
New Bees from Southern California and Other Records, T. D. A. Cockerell; Bulletin of the Southern California Academy of Sciences
North-American Bees, and a New Homopteron, T. D. A. Cockerell; Annals and Magazine of Natural History
North American Bees of the Genus Nomada, T. D. A. Cockerell; Proceedings of the Academy of Natural Sciences of Philadelphia
Notes on Five Species of Megachile, T. D. A. Cockerell; The Canadian Entomologist
Notes on Some Genera of Bees, T. D. A. Cockerell; Transactions of the American Entomological Society
Notes on the Bee: Genus Apis, T. D. A. Cockerell; The Entomologist
Notes on the Bee-Genus Halictus, T. D. A. Cockerell; The Entomologist
Notes on the Entomology of Pecos, New Mexico, T. D. A. Cockerell; The Canadian Entomologist
Some North American Bees: Osmia and Triepeolus, T. D. A. Cockerell; Entomological News
The Bees of the Genus Nomada Found in Colorado, With a Table to Separate All the Species of the Rocky Mountains, T. D. A. Cockerell; Bulletin No. 94, Report of Entomologist Colorado Experiment Station for 1903
Hymenoptera of Beulah, New Mexico, Henry L. Viereck and T. D. A. Cockerell; Transactions of the American Entomological Society
1902
A New Bee of the Genus Bombomelecta, T. D. A. Cockerell; The Canadian Entomologist
Colletes crucis, T. D. A. Cockerell; Entomological News
Flowers and Insects in New Mexico, T. D. A. Cockerell; The American Naturalist
Hymenoptera of Southern California. I, T. D. A. Cockerell; Bulletin of the Southern California Academy of Sciences
Hymenoptera of Southern California. II, T. D. A. Cockerell; Bulletin of the Southern California Academy of Sciences
New Bees of the Genus Andrena, From Wisconsin, T. D. A. Cockerell; The Canadian Entomologist
North American Bees of the Genus Andrena, T. D. A. Cockerell; Annals and Magazine of Natural History
The Genus Lithurgopsis, T. D. A. Cockerell; Entomological News
Contributions from the New Mexico Biological Station— XII. On Some Genera of Bees, T. D. A. Cockerell and Emerson Atkins; Annals and Magazine of Natural History
1901
A New Andrena from California, T. D. A. Cockerell; Entomological News
A New Bee from California, T. D. A. Cockerell; Zeitschrift für Hymenopterologie und Dipterologie
A Peculiar New Type of Halictine Bees, T. D. A. Cockerell; Entomological News
Bees from Southern California, Visiting Flowers of Eriogonum and Rhus, T. D. A. Cockerell; The Canadian Entomologist
Contributions from the New Mexico Biological Station— XI. New and Little-Known Insects from New Mexico, T. D. A. Cockerell; Annals and Magazine of Natural History
Contributions from the New Mexico Biological Station— X. Observations on Bees Collected at Las Vegas, New Mexico, and in the Adjacent Mountains. II., T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions of New Bees Collected by Mr. H. H. Smith in Brazil— II., T. D. A. Cockerell; Proceedings of the Academy of Natural Sciences of Philadelphia
Flower and Insect Records from New Mexico, T. D. A. Cockerell; Entomological News
New and Little-Known Bees From Nebraska, T. D. A. Cockerell; The Entomologist
New Bees of the Subfamily Anthophorinæ from Southern California, T. D. A. Cockerell; The Canadian Entomologist
On Some Bees of the Genus Andrena from New Jersey, T. D. A. Cockerell; Journal of the New York Entomological Soceity
Some Insects of the Hudsonian Zone in New Mexico— V., T. D. A. Cockerell; Psyche
The American Bees of the Genus Andrena Described by F. Smith, T. D. A. Cockerell; The Canadian Entomologist
The Bee-genus Dioxys in America, T. D. A. Cockerell; The Entomological Student
Some Insects of the Hudsonian Zone in New Mexico— VI— Hymenoptera Apoidea, II., T. D. A. Cockerell and Nathan Banks; Psyche
Contributions from the New Mexico Biological Station— IX. On Certain Genera of Bees., T. D. A. Cockerell and Wilmatte P. Cockerell; Annals and Magazine of Natural History
1900
Descriptions of New Bees Collected by Mr. H. H. Smith in Brazil— I., T. D. A. Cockerell; Proceedings of the Academy of Natural Sciences of Philadelphia
LIV.—Observations on Bees Collected at Las Vegas, New Mexico, and in the Adjacent Mountains, T. D. A. Cockerell; Annals and Magazine of Natural History
Notes on New Mexico Bees, T. D. A. Cockerell; The Canadian Entomologist
Some Bees Visiting the Flowers of Mesquite, T. D. A. Cockerell; The Entomologist
Some Insects of the Hudsonian Zone in New Mexico— I., T. D. A. Cockerell; Psyche
The Cactus Bees; Genus Lithurgus, T. D. A. Cockerell; The American Naturalist
The Lower and Middle Sonoran Zones in Arizona and New Mexico, T. D. A. Cockerell; The American Naturalist
The New Mexico Bees of the Genus Cœlioxys, T. D. A. Cockerell; The Canadian Entomologist
The New Mexico Bees of the Genus Megachile and a New Andrena, T. D. A. Cockerell; Annals and Magazine of Natural History
1899
A New Wax-Scale From West Africa, T. D. A. Cockerell; The Entomologist
Catálogo de las Abejas de México, T. D. A. Cockerell; Bibliotecha Agrícola de la Secretaría de Fomento
Four New Bees of Genus Perdita Collected by Dr. L. O. Howard in Mexico, T. D. A. Cockerell; Annals and Magazine of Natural History
New Species of Andrena from Kansas, T. D. A. Cockerell; Entomological News
Notes on American Bees, T. D. A. Cockerell; The Entomologist
Notes on Some Hymenoptera, T. D. A. Cockerell; The Canadian Entomologist
Postscript on Perdita, T. D. A. Cockerell; Psyche
Some Synonymy, T. D. A. Cockerell; Psyche
The Bees of Kansas, T. D. A. Cockerell; Entomological News
The Panurgine Bees, T. D. A. Cockerell; Psyche
The Species of the Bee-Genus Dieunomia, T. D. A. Cockerell; The Entomologist
Contributions from the New Mexico Biological Station. VII. Observations on Bees, with Descriptions of New Genera and Species, T. D. A. Cockerell and Wilmatte Porter; Annals and Magazine of Natural History
1898
A Southern Type of Andrena in Connecticut, T. D. A. Cockerell; Entomological News
Contributions to the Entomology of New Mexico, T. D. A. Cockerell; Proceedings of the Davenport Academy of Natural Science
Further Notes on Andrena, T. D. A. Cockerell; The Entomologist
Letter to Mr. Wickham, T. D. A. Cockerell
LV.— New and Little-Known Hymenoptera taken by Prof. C. H. T. Townsend and Mr. C. M. Barber in New Mexico in 1898., T. D. A. Cockerell; Annals and Magazine of Natural History
New and Little-Known Bees, T. D. A. Cockerell; The Canadian Entomologist
New and Little-Known Bees from Washington State, T. D. A. Cockerell; Proceedings of the Academy of Natural Sciences of Philadelphia
New Bees from New Mexico, T. D. A. Cockerell; The Canadian Entomologist
New North-American Insects, T. D. A. Cockerell; Annals and Magazine of Natural History
Notes on Some Bees of the Genus Andrena from Hartford, Connecticut, T. D. A. Cockerell; The Canadian Entomologist
On Some Panurgine and Other Bees, T. D. A. Cockerell; Transactions of the American Entomological Society
On Some Small Bees From Arizona, T. D. A. Cockerell; The Canadian Entomologist
Philanthus punctatus var. cockerelli Dunning, T. D. A. Cockerell; Entomological News
Some Bees of the Genus Megachile from New Mexico and Colorado, T. D. A. Cockerell; Annals and Magazine of Natural History
Synopsis of North American Bees of the Genus Stelis, T. D. A. Cockerell; The Entomologist
Tables for the Determination of New Mexico Bees, T. D. A. Cockerell; Bulletin of the University of New Mexico
The Insect Visitors of Flowers in New Mexico— I., T. D. A. Cockerell; The Zoologist
The Insect Visitors of Flowers in New Mexico— II., T. D. A. Cockerell; Zoologist
1897
A New Cœlioxys From New Mexico, T. D. A. Cockerell; The Canadian Entomologist
A New Genus of Bees. Ashmeadiella, T. D. A. Cockerell; Entomological News
Contributions from the New Mexico Biological Station.— III. The Bees of the Genus Colletes Found in New Mexico, T. D. A. Cockerell; Annals and Magazine of Natural History
Further Notes on Augochlora, T. D. A. Cockerell; The Canadian Entomologist
LX.— New Insects from Embudo, New Mexico, T. D. A. Cockerell; Annals and Magazine of Natural History
New and Little-Known Bees, T. D. A. Cockerell; Transactions of the American Entomological Society
New and Little-Known North American Bees, T. D. A. Cockerell; Proceedings of the Academy of Natural Sciences of Philadelphia
New Forms of Osmia From New Mexico, T. D. A. Cockerell; The Canadian Entomologist
New Hymenoptera From New Mexico, U.S.A., T. D. A. Cockerell; The Entomologist
New Species of Andrena From North America, T. D. A. Cockerell; The Entomologist
On the Generic Position of Some Bees Hitherto Referred to Panurgus and Calliopsis, T. D. A. Cockerell; The Canadian Entomologist
On the Mexican Bees of the Genus Augochlora, T. D. A. Cockerell; The Canadian Entomologist
Some Species of Perdita From Nebraska, T. D. A. Cockerell; Entomological News
The Bees of the Genus Halictus Found in New Mexico I.—Species Without Any Green or Blue, T. D. A. Cockerell; Transactions of the American Entomological Society
The New Mexico Species of Anthidium, T. D. A. Cockerell; The Canadian Entomologist
XII.— Contributions from the New Mexico Biological Station. —VI. The New Mexico Bees of Genus Heriades, and a new Halictus., T. D. A. Cockerell; Annals and Magazine of Natural History
XXXIX.—Contributions from the New Mexico Biological Station.—V. Some New Hymenoptera from the Mesilla Valley, New Mexico., T. D. A. Cockerell; Annals and Magazine of Natural History