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1913
Die Bienenfauna von Bremen, J. D. Alfken; Abhandlugen herausgegeben vom Naturwissenschaftlichen Verein zu Bremen
Eine neue deutsche Andrena- Art. (Hym.), J. D. Alfken; Deutsch. Ent. Zeitschr.
Eucera difficilis Duf. = E. longicornis L. (Hym.), J. D. Alfken; Deutsch. Ent. Zeitschr.
Chromosomenverhaltinisse bei der Spermatogenese solitarer Apiden (Osmia oornuta Latr.), Ludwig Armbruster; Archiv f. Zellforschung, Leipzig
Die Pollensammelapparate der beinsammelnden Bienen, A. Braue; Jenaische Zeitschrift für Naturwissenschaft
Biologie südafrikanischer Apiden, H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie
Biologie südafrikanischer Apiden (Fortsetzung aus Heft 4), H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie
Part II. On Some New and Other Species of Non-Parasitic Hymenoptera in the Collections of the Zoological Branch of the Forest Research Insitute, Dehra Dun, Peter Cameron; Indian Forest Records
The Dentate Margin of the Abdomen in Chrysis, T. Algernon Chapman; Entomologist's Monthly Magazine
A New Bee of the Genus Emphor, T. D. A. Cockerell; Psyche
A Small Collection of Bees from Tasmania, T. D. A. Cockerell; Proceedings of the Linnean Society of New South Wales
Australian Bees. i. A New Crocisa, with a List of the Australian Species of the Genus, T. D. A. Cockerell; Proceedings of the Linnean Society of New South Wales
Bees of the Genus Megachile from Australia, T. D. A. Cockerell; The Entomologist
Descriptions and Records of Bees - L, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - LI, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - LII, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - LIII, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - LIV, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - LV, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XLIX, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XLVIII, T. D. A. Cockerell; Annals and Magazine of Natural History
Meliponine Bees from Central America, T. D. A. Cockerell; Psyche
Some Australian Bees, T. D. A. Cockerell; Proceedings of The Academy of Natural Sciences of Philadelphia
Some Fossil Insects from Florissant, Colorado, T. D. A. Cockerell; The Canadian Entomologist
The Bee-Genus Thrinchostoma in Asia, T. D. A. Cockerell; The Canadian Entomologist
Two New Canadian Bees, T. D. A. Cockerell; The Canadian Entomologist
Descriptions of New Hymenoptera, No. 6, J. C. Crawford; Proceedings of the United States National Museum
Descriptions of New Hymenoptera, No. 7, J. C. Crawford; Proceedings of the United States National Museum
Notes on Some Species of the Genus Prosopis, J. C. Crawford; The Canadian Entomologist
Some Bees from New Brunswick, with Description of a New Species of Heriades, J. C. Crawford; The Canadian Entomologist
New Hymenoptera From North America, A. B. Gahan; The Proceedings of the United States National Museum
1912
Die Bienenfauna von Osterpreußen mit analytischen Bestimmungstabellen der Halictus- und Prosopis-Arten, J. D. Alfken
Die Bienenfauna von Ostpreußen, J. D. Alfken; Physikalisch-Oekonomische Gesellschaft, Koenigsberg, Schriften
Die Bienenfauna von Westpreußen, J. D. Alfken; Westpreussicher Botanisch-Zoological Verein, Danzig
Notes on the Eastern Species of Cerceris (Hym. Philanthidae), Nathan Banks; Annals Entomological Society of America
The North American Digger Wasps of the Subfamily Scoliinae, Oscar C. Bartlett; Annals of the Entomological Society of America
South African and Autralian Aculeate Hymenoptera in the Oxford Museum, C. T. Bingham
Zusätze und Berichtigungen zu Dr. H. Frieses: Die Bienen Afrikas. (Hym.), H. Brauns; Deutsche Entomologische Zeitschrift
Part I. On the Parasitic Hymenoptera reared at Dehra Dun, Northern India, from the Lac (Tachardia) and Sal Insects, Peter Cameron; Indian Forest Records
Animals and Plants Described as New from Colorado in 1911, T. D. A. Cockerell; University of Colorado Studies
Canadian Bees in the British Museum, T. D. A. Cockerell; The Canadian Entomologist
Descriptions and Records of Bees - XLII, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XLIII, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XLIV, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XLV, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XLVI, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XLVII, T. D. A. Cockerell; Annals and Magazine of Natural History
Names Applied to Bees of the Genus Osmia, Found in North America, T. D. A. Cockerell; Proceedings of the United States National Museum
Names Applied to the Eucerine Bees of North America, T. D. A. Cockerell; Proceedings of the United States National Museum
New and Little-Known Bees, T. D. A. Cockerell; The Entomologist
New Bees from Brazil, T. D. A. Cockerell; Psyche
New Records of Bees (Hymen.), T. D. A. Cockerell; Entomological News
No. II - Hymenoptera, Apoidea, T. D. A. Cockerell; Transactions of the Linnean Society of London
Some Bees from Guatemala, T. D. A. Cockerell; Psyche
Some Parasitic Bees (Coelioxys), T. D. A. Cockerell; The Canadian Entomologist
Two Bees New to Canada, T. D. A. Cockerell; The Canadian Entomologist
Collecting Bees at Gualan, Guatamala, Wilmatte P. Cockerell; The Canadian Entomologist
Collecting Bees at Gualan, Guatemala, Wilmatte P. Cockerell; The Canadian Entomologist
Descriptions of New Hymenoptera No. 5, J. C. Crawford; Proceedings of the United States National Museum
Notes on Some Canadian Bees, J. C. Crawford; The Canadian Entomologist
On the Status of Some Species of the Genus Panurginus, J. C. Crawford; The Canadian Entomologist
Sur l'évolution du Nemognatha chrysomelina F. (Coléoptère), Auguste Cros; Bull. de la Société d'Histoire Naturelle de l'Afrique du Nord
Sobre Algunas Anomalías en las Alas de los Himenópteros (El Gén. Nomadita Mocs. y el Gen. Biareolina Dours.), José María Dumset Y Alonso; Transactions of the Second Eontomological Congress
Beiträge zur Kenntnis der Lebensweise und Entwicklunsgeschichte einiger Hautflügler, Josef Fahringer and Franz Tölg; Verhandlungen des Naturforschenden Vereines in Brünn
Bombus lapponicus (F.) and its Varieties (♀♀ and ☿☿) (Hymenoptera, Bombidae), A. S. Skorikov; Revue Russe d'Entom.
Гнездаваньне Confusobombus confusus (Schenck), М. Дабратворскi
1911
Apidologische Studien. (Hym.), J. D. Alfken; Deutsch. Ent. Zeitschr.
Eine Neue Ungarische Andrena-art, J. D. Alfken; Annales Musei Nationals Hungarici
Some Experimental Observations Concerning the Behavior of Various Bees in Their Visits to Cotton Blossoms, H. A. Allard; The American Naturalist
Psammocharidae, Nathan Banks; Journal of the New York Entomological Society
Geschlechtsdimorphismus in der Bienengattung Thygater Holmbg. (Hym.), A. W. Bertoni and C. Schrottky; Deutsch. Ent. Zietschr.
A New Thynnid Wasp from Brazil (Hym.), James Chester Bradley; Deutsch. Ent. Zeitschr.
Biologisches über südafrikanische Hymenopteren (Fortsetzung aus Heft 3), H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie
Biologisches über südafrikanische Hymenopteren (Schluss aus Heft 4), H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie
A List of the Bees of the Genus Perdita Smith, T. D. A. Cockerell; Psyche
A new Bee from New York State, T. D. A. Cockerell; Entomological News
A New Psenid Wasp from Peru, T. D. A. Cockerell; The Canadian Entomologist
Bees in the Collection of the United States National Museum. 1, T. D. A. Cockerell; Proceedings of the United States National Museum
Bees in the Collection of the United States National Museum. 2, T. D. A. Cockerell; Proceedings of the United States National Museum
Descriptions and Records of Bees - XL, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XXXIX, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XXXVI, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XXXVIII, T. D. A. Cockerell; Annals and Magazine of Natural History
Names Applied to Bees of the Genus Nomada Found in North America, T. D. A. Cockerell; Proceedings of the United States National Museum
New and Little Known Bees, T. D. A. Cockerell; Transactions American Enomological Society
Records of Bees, T. D. A. Cockerell; The Canadian Entomologist
Some Bees From Western Canada, T. D. A. Cockerell; The Canadian Entomologist
The Bees of the Solomon Islands, T. D. A. Cockerell; Proceedings of the Linnean Society of New South Wales
Descriptions of New Hymenoptera. 1, J. C. Crawford; Proceedings of the United States National Museum
Descriptions of New Hymenoptera No. 3, J. C. Crawford; Proceedings of the United States National Museum
Miscellaneous Notes on Collecting in Georgia, William T. Davis; Journal of the New York Entomological Society
The Entomologist: An Illustrated Journal of General Entomology No. 574, Kenneth J. Morton, Rupert Stenton, T. Miyake, C. G. Nurse, W. J. Lucas, Richard South, L. W. Newman, T. D. A. Cockerell, W. J. Lucas, W. L. Distant, and A. E. Wileman; The Entomologist
Bombus pratorum (L.) and its Variations (Hymenoptera Bombidae), A. S. Skorikov; Rev. Russe. Entom
1910
Beitrag zur Kenntnis der mit tetralonia verwandten Bienen aus Sudamerika., A. W. Bertoni and C. Schrottky; Zoologische Jahrbücher
Tetrachrysis barrei Rad. (Hymen., Chrysid.), H. Bischoff; Berl. Etom. Zietschrift
Notes on the Pollination of Flowers in India. Note No. 7 A few observations made in the Central Provinces and Berar, I. H. Burkhill; Journal of the Asiatic Society of Bengal
On a New Species of Parasitic Bee (Nomada) from Borneo, Peter Cameron; The Entomologist
Some Further Notes on Nocturnal Hymenoptera, Peter Cameron; The Annals of Scottish Natural History
Descriptions and Records of Bees - XXIV, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - XXIX, T. D. A. Cockerell; Annals and Magazine of Natural History