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1913

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Die Bienenfauna von Bremen, J. D. Alfken; Abhandlugen herausgegeben vom Naturwissenschaftlichen Verein zu Bremen

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Eine neue deutsche Andrena- Art. (Hym.), J. D. Alfken; Deutsch. Ent. Zeitschr.

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Eucera difficilis Duf. = E. longicornis L. (Hym.), J. D. Alfken; Deutsch. Ent. Zeitschr.

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Chromosomenverhaltinisse bei der Spermatogenese solitarer Apiden (Osmia oornuta Latr.), Ludwig Armbruster; Archiv f. Zellforschung, Leipzig

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Die Pollensammelapparate der beinsammelnden Bienen, A. Braue; Jenaische Zeitschrift für Naturwissenschaft

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Biologie südafrikanischer Apiden, H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie

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Biologie südafrikanischer Apiden (Fortsetzung aus Heft 4), H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie

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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

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The Dentate Margin of the Abdomen in Chrysis, T. Algernon Chapman; Entomologist's Monthly Magazine

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A New Bee of the Genus Emphor, T. D. A. Cockerell; Psyche

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A Small Collection of Bees from Tasmania, T. D. A. Cockerell; Proceedings of the Linnean Society of New South Wales

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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

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Bees of the Genus Megachile from Australia, T. D. A. Cockerell; The Entomologist

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Descriptions and Records of Bees - L, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - LI, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - LII, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - LIII, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - LIV, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - LV, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XLIX, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XLVIII, T. D. A. Cockerell; Annals and Magazine of Natural History

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Meliponine Bees from Central America, T. D. A. Cockerell; Psyche

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Some Australian Bees, T. D. A. Cockerell; Proceedings of The Academy of Natural Sciences of Philadelphia

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Some Fossil Insects from Florissant, Colorado, T. D. A. Cockerell; The Canadian Entomologist

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The Bee-Genus Thrinchostoma in Asia, T. D. A. Cockerell; The Canadian Entomologist

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Two New Canadian Bees, T. D. A. Cockerell; The Canadian Entomologist

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Descriptions of New Hymenoptera, No. 6, J. C. Crawford; Proceedings of the United States National Museum

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Descriptions of New Hymenoptera, No. 7, J. C. Crawford; Proceedings of the United States National Museum

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Notes on Some Species of the Genus Prosopis, J. C. Crawford; The Canadian Entomologist

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Some Bees from New Brunswick, with Description of a New Species of Heriades, J. C. Crawford; The Canadian Entomologist

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New Hymenoptera From North America, A. B. Gahan; The Proceedings of the United States National Museum

1912

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Die Bienenfauna von Osterpreußen mit analytischen Bestimmungstabellen der Halictus- und Prosopis-Arten, J. D. Alfken

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Die Bienenfauna von Ostpreußen, J. D. Alfken; Physikalisch-Oekonomische Gesellschaft, Koenigsberg, Schriften

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Die Bienenfauna von Westpreußen, J. D. Alfken; Westpreussicher Botanisch-Zoological Verein, Danzig

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Notes on the Eastern Species of Cerceris (Hym. Philanthidae), Nathan Banks; Annals Entomological Society of America

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The North American Digger Wasps of the Subfamily Scoliinae, Oscar C. Bartlett; Annals of the Entomological Society of America

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South African and Autralian Aculeate Hymenoptera in the Oxford Museum, C. T. Bingham

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Zusätze und Berichtigungen zu Dr. H. Frieses: Die Bienen Afrikas. (Hym.), H. Brauns; Deutsche Entomologische Zeitschrift

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Part I. On the Parasitic Hymenoptera reared at Dehra Dun, Northern India, from the Lac (Tachardia) and Sal Insects, Peter Cameron; Indian Forest Records

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Animals and Plants Described as New from Colorado in 1911, T. D. A. Cockerell; University of Colorado Studies

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Canadian Bees in the British Museum, T. D. A. Cockerell; The Canadian Entomologist

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Descriptions and Records of Bees - XLII, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XLIII, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XLIV, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XLV, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XLVI, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XLVII, T. D. A. Cockerell; Annals and Magazine of Natural History

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Names Applied to Bees of the Genus Osmia, Found in North America, T. D. A. Cockerell; Proceedings of the United States National Museum

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Names Applied to the Eucerine Bees of North America, T. D. A. Cockerell; Proceedings of the United States National Museum

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New and Little-Known Bees, T. D. A. Cockerell; The Entomologist

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New Bees from Brazil, T. D. A. Cockerell; Psyche

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New Records of Bees (Hymen.), T. D. A. Cockerell; Entomological News

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No. II - Hymenoptera, Apoidea, T. D. A. Cockerell; Transactions of the Linnean Society of London

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Some Bees from Guatemala, T. D. A. Cockerell; Psyche

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Some Parasitic Bees (Coelioxys), T. D. A. Cockerell; The Canadian Entomologist

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Two Bees New to Canada, T. D. A. Cockerell; The Canadian Entomologist

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Collecting Bees at Gualan, Guatamala, Wilmatte P. Cockerell; The Canadian Entomologist

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Collecting Bees at Gualan, Guatemala, Wilmatte P. Cockerell; The Canadian Entomologist

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Descriptions of New Hymenoptera No. 5, J. C. Crawford; Proceedings of the United States National Museum

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Notes on Some Canadian Bees, J. C. Crawford; The Canadian Entomologist

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On the Status of Some Species of the Genus Panurginus, J. C. Crawford; The Canadian Entomologist

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Sur l'évolution du Nemognatha chrysomelina F. (Coléoptère), Auguste Cros; Bull. de la Société d'Histoire Naturelle de l'Afrique du Nord

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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

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Beiträge zur Kenntnis der Lebensweise und Entwicklunsgeschichte einiger Hautflügler, Josef Fahringer and Franz Tölg; Verhandlungen des Naturforschenden Vereines in Brünn

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Bombus lapponicus (F.) and its Varieties (♀♀ and ☿☿) (Hymenoptera, Bombidae), A. S. Skorikov; Revue Russe d'Entom.

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Гнездаваньне Confusobombus confusus (Schenck), М. Дабратворскi

1911

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Apidologische Studien. (Hym.), J. D. Alfken; Deutsch. Ent. Zeitschr.

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Eine Neue Ungarische Andrena-art, J. D. Alfken; Annales Musei Nationals Hungarici

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Some Experimental Observations Concerning the Behavior of Various Bees in Their Visits to Cotton Blossoms, H. A. Allard; The American Naturalist

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Psammocharidae, Nathan Banks; Journal of the New York Entomological Society

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Geschlechtsdimorphismus in der Bienengattung Thygater Holmbg. (Hym.), A. W. Bertoni and C. Schrottky; Deutsch. Ent. Zietschr.

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A New Thynnid Wasp from Brazil (Hym.), James Chester Bradley; Deutsch. Ent. Zeitschr.

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Biologisches über südafrikanische Hymenopteren (Fortsetzung aus Heft 3), H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie

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Biologisches über südafrikanische Hymenopteren (Schluss aus Heft 4), H. Brauns; Zeitschrift für wissenschaftliche Insektenbiologie

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A List of the Bees of the Genus Perdita Smith, T. D. A. Cockerell; Psyche

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A new Bee from New York State, T. D. A. Cockerell; Entomological News

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A New Psenid Wasp from Peru, T. D. A. Cockerell; The Canadian Entomologist

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Bees in the Collection of the United States National Museum. 1, T. D. A. Cockerell; Proceedings of the United States National Museum

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Bees in the Collection of the United States National Museum. 2, T. D. A. Cockerell; Proceedings of the United States National Museum

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Descriptions and Records of Bees - XL, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XXXIX, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XXXVI, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XXXVIII, T. D. A. Cockerell; Annals and Magazine of Natural History

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Names Applied to Bees of the Genus Nomada Found in North America, T. D. A. Cockerell; Proceedings of the United States National Museum

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New and Little Known Bees, T. D. A. Cockerell; Transactions American Enomological Society

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Records of Bees, T. D. A. Cockerell; The Canadian Entomologist

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Some Bees From Western Canada, T. D. A. Cockerell; The Canadian Entomologist

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The Bees of the Solomon Islands, T. D. A. Cockerell; Proceedings of the Linnean Society of New South Wales

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Descriptions of New Hymenoptera. 1, J. C. Crawford; Proceedings of the United States National Museum

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Descriptions of New Hymenoptera No. 3, J. C. Crawford; Proceedings of the United States National Museum

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Miscellaneous Notes on Collecting in Georgia, William T. Davis; Journal of the New York Entomological Society

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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

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Bombus pratorum (L.) and its Variations (Hymenoptera Bombidae), A. S. Skorikov; Rev. Russe. Entom

1910

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Beitrag zur Kenntnis der mit tetralonia verwandten Bienen aus Sudamerika., A. W. Bertoni and C. Schrottky; Zoologische Jahrbücher

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Tetrachrysis barrei Rad. (Hymen., Chrysid.), H. Bischoff; Berl. Etom. Zietschrift

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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

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On a New Species of Parasitic Bee (Nomada) from Borneo, Peter Cameron; The Entomologist

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Some Further Notes on Nocturnal Hymenoptera, Peter Cameron; The Annals of Scottish Natural History

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Descriptions and Records of Bees - XXIV, T. D. A. Cockerell; Annals and Magazine of Natural History

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Descriptions and Records of Bees - XXIX, T. D. A. Cockerell; Annals and Magazine of Natural History