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1910
Descriptions and Records of Bees - XXXIII, T. D. A. Cockerell; Annals and Magazine of Natural History
New American Bees - IX, T. D. A. Cockerell; The Entomologist
New and Little-Known Bees, T. D. A. Cockerell; Trans. American Entomological Society
New and Little-Known Western Bees, T. D. A. Cockerell; Entomological News
New Bees of the Genus Osmia from California, T. D. A. Cockerell; Entomological News
Some Australian Bees in the Berlin Museum, T. D. A. Cockerell; Journal New York Entomological Society
Some Bees from Eldora, Colorado, T. D. A. Cockerell; Psyche
Some Bees from High Altitudes in the Himilaya Mountains, T. D. A. Cockerell; The Entomologist
Some Bees of the Genus Augochlora from the West Indies, T. D. A. Cockerell; Proceedings of the United States National Museum
Some Bees of the Genus Nomada From Washington State, T. D. A. Cockerell; Psyche
Some Insects from Steamboat Springs, Colo. - I, T. D. A. Cockerell; The Canadian Entomologist
Some Insects from Steamboat Springs, Colo. - II, T. D. A. Cockerell; The Canadian Entomologist
Some Neotropical Bees, T. D. A. Cockerell; Psyche
Some New American Bees, T. D. A. Cockerell; The Canadian Entomologist
The Bee Fauna of Calgary, Alberta, T. D. A. Cockerell; The Canadian Entomologist
The North American Bees of the Genus Nomia, T. D. A. Cockerell; Proceedings of the United States National Museum
An Introduction to the Study of Rocky Mountain Bees, T. D. A. Cockerell and W. W. Robbins; University of Colorado Studies
A new Anthidium from New Jersey, J. C. Crawford; Entomological News
New Hymenoptera from the Phillipine Islands, J. C. Crawford; Proceedings of the United States National Museum
Geometrical Notes. A New Cingilia., L. W. Swett; Psyche
1907
New Halictinae from the Western United States, J. C. Crawford; Invertabrata Pacifica
New North American Hymenoptera, J. C. Crawford; Journal of the New York Entomological Society
1906
A New Halictus from Nebraska, J. C. Crawford; Entomological News
Some Costa Rican Bees, J. C. Crawford Jr.; Trans. Am. Ent. Soc.
Some New Species of Halictus, J. C. Crawford; The Canadian Entomologist
Three New Species of Bees, J. C. Crawford; The Canadian Entomologist
1904
A New Bee in the Genus Diphaglossa, J. C. Crawford Jr.; The Canadian Entomologist
Two New Halictus from New Jersey, J. C. Crawford Jr.; Entomological News
1903
The Nesting of a Carpenter Bee, Wilmatte Porter Cockerell; Birds and Nature Magazine
A New Bombus from Costa Rica, J. C. Crawford Jr.; The Canadian Entomologist
A New Genus of Bees, J. C. Crawford Jr.; The Canadian Entomologist
Some Nebraska Bees, J. C. Crawford Jr.; The Canadian Entomologist
1902
Notes and Descriptions of Bees, J. C. Crawford Jr.; The Canadian Entomologist
The Bee Genus Dialictus, J. C. Crawford Jr.; The Canadian Entomologist
1901
North American Bees of the Genus Agapostemon Guerin, J. C. Crawford Jr.; Proceedings of the Nebraska Academy of Sciences
1897
Catalogus Hymenopterorum 8, Fossores (Sphegidae), C. G. Dalla Torre; Latreille. Préc. car. génér. Insect.
1895
Synonymischer Katalog der europäischen Sammeibienen, K. W. von Dalla Torre and H. Friese; Entomologische Nachrichten
1893
Proceedings of the Academy of Natural Sciences of Philadelphia, Ezra Townsend Cresson; Proceedings of the Academy of Natural Sciences of Philadelphia
1890
Hymenopterologische Notizen, K. W. von Dalla Torre; Wiener Entomologische Zeitung
1889
Die Hymenopteren von Helgoland, K. W. von Dalla Torre; Wiener Entomologische Zeitung
1886
Notizie ed Osservazioni Sulla Geo-Fauna Sarda Memoria Sesta. Risultamento di Ricerche Fatte in Sardegna nella State del 1885, Achille Costa; Atti della Reale Accademia delle Scienze Fisiche e Matematiche di Napoli
1885
Notizie ed Osservazioni Sulla Geo-Fauna Sarda Memoria Quinta. Risultamento di Ricerche Fatte in Maggio 1885, Achille Costa; Atti della Reale Accademia delle Scienze Fisiche e Matematiche di Napoli
1884
Diagnosi di nuovi Artropodi trovati in Sardegna, Achille Costa; Bullettino della Società Entomologica Italiana
Notizie ed Osservazioni Sulla Geo-Fauna Sarda Memoria Quarta, Achille Costa; Atti della Reale Accademia delle Scienze Fisiche e Matematiche di Napoli
Notizie ed Osservazioni Sulla Geo-Fauna Sarda Memoria Terza. Risultamento di Ricerche Fatte in Sardegna nella Estate del 1883, Achille Costa; Atti della Reale Accademia delle Scienze Fisiche e Matematiche di Napoli
Revue Mensuelle D'Entomologie Pure et Appliquee, C. G. Dalla Torre; Revue Mensuelle D’entomologie
1883
Notizie ed Osservazioni Sulla Geo-Fauna Sarda Memoria Seconda. Risultamento di Ricerche Fatte in Sardegna nella Primavera del 1882, Achille Costa; Atti della Reale Accademia delle Scienze Fisiche e Matematiche di Napoli
Die hymenopterologischen Arbeiten Prof. Dr. Arn. Försters, Karl Wilhelm von Dalla Torre; Jahresbericht der Naturforschenden Gesellschaft Graubünden
1882
Notizie ed Osservazioni Sulla Geo-Fauna Sarda Memoria Prima. Risultamento di Ricerche Fatte in Sardegna nel Settembre 1881, Achille Costa; Atti della Reale Accademia delle Scienze Fisiche e Matematiche di Napoli
Rapporto Preliminare e Sommario Sulle Ricerche Zoologiche Fatte in Sardegna Durante la Primavera del 1882, Achille Costa; Aecademia delle Suenze Tisiche e Mathematiche in Napoli Rendiconti
New Hymenoptera in the Collection of the American Entomological Society, Ezra Townsend Cresson
Berichte des naturwissenschaftlich-medizinischen, K. W. von Dalla Torre; Innsbruck
1879
Catalogue of North American Apidae with Descriptions of New Species, Ezra Townsend Cresson; Transactions of the American Entomological Society
1878
Descriptions of new North American Hymenoptera in the collection of the American Entomological Society, Ezra Townsend Cresson; Trans. Amer. Ent. Soc.
1877
Die Apiden Tirols (Fortsetzung und Schluss), Karl von Dalla Torre; Zeitschrift des Ferdinandeums für Tirol und Vorarlberg
1874
Descriptions of New Hymenoptera, Ezra Townsend Cresson; Transactions of the American Entomological Society
Report upon The Collections of Hymenoptera made in portions of Nevada, Utah, Colorado, New Mexico, and Arizona, during The Years 1872, 1873, and 1874, Ezra Townsend Cresson
1872
Hymenoptera Texana, Ezra Townsend Cresson; Trans. Amer. Ent. Soc.
1869
A list of the North American species of the genus Anthophora, with descriptions of new species, Ezra Townsend Cresson; Trans. Amer. Ent. Soc.
Notes on Cuban Hymenoptera, with descriptions of New Species, Ezra Townsend Cresson; Trans. Amer. Ent. Soc.
1868
Catalogue of a small Collection of Hymenoptera made in New Mexico during the summer of 1867, Ezra Townsend Cresson; Transactions of the American Entomological Society
Descriptions of North American Bees No. 1, Ezra Townsend Cresson; Proceedings of the Boston Society of Natural History
1867
Prospetto Sistematico Deli Imenotteri Italiani, Achille Costa; Annuario del Museo Zoologico della R. Universita di Napoli
1865
Catalogue of Hymenoptera in the Collection of the Entomological Society of Philadelphia, from Colorado Territory, Ezra Townsend Cresson; Proc. Ent. Soc. Philad.
On the Hymenoptera of Cuba, Ezra Townsend Cresson; Proc. Ent. Soc. Philad.
1864
Descriptions of North American Hymenoptera, in the Collection of the Entomological Society of Philadelphia, Ezra Townsend Cresson; Proc. Ent. Soc. Philad.
Descriptions of several new species of North American Apidae, Ezra Townsend Cresson; Proc. Ent. Soc. Philad.
On the North American species of several genera of Apidae, Ezra Townsend Cresson; Amer. Ent. Soc. Phil. Proc.
On the North American species of the genus Osmia, Ezra Townsend Cresson; Ent. Soc. Phila. Proc.
1863
Proceedings of the Entomological Society of Philadelphia, Ezra Townsend Cresson; Proceedings of the Entomological Society of Philadelphia
List of the North American Species of Bombus and Aporthus, Ezra Townsend Cresson and Wm. H. Edwards; Proc. Ent. Soc. Philad.
1862
Nuovi Studii Sulla Entomologia Della Calabria Ulteriore, Achille Costa; R. Accademia Delle Scienze Fisiche E Matematiche
1858
Ricerche Entomologiche sui Monti Partenii, Achille Costa; Società Evonomia di Principato Ulteriore
1832
Hymenopterologicae Ad illustrandam Faunam Svecicam, quas Venia Ampliss. Facultatis Philos. Acad. Lund. Proponut Gustav. Dahlbom, Historia Natur. Doc., Societ. Linn. Holm. Membr. Et N. P. Ringstand, Ostro-Gothi, G. Dahlbom; Academia Carolina
Permittente Ampliss. Consistorio Acad. Lund., Publico Eruditorum Examini subjicit Gutav. Dahlbom, G. Dahlbom; Academia Carolina
1831
Hymenopterologicae Ad illustrandam Faunam Svecicam, quas Venia Ampliss. Facultatis Philos. Acad. Lund. Proponut Gustav. Dahlbom, Historia Natur. Doc., Societ. Linn. Holm. Membr. Et N. P. Ringstand, Ostro-Gothi, G. Dahlbom; Academia Carolina
1828
1801
Illustratio Iconographica Insectorum, Antonio Joanne Coquebert; Societat. Philom. Et Hist. Nat. Paris. Socio.
1800
Unsere Hummel-(Bombus) Arten, K. W. von Dalla Torre; Naturhistoriker
Unsere Hummel-(Bombus) Arten, K. W. von Dalla Torre; Naturhistoriker