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1933
Ueber die von Erichson in Walt, Reise durch Tyrol, Oberitalien und Piemont nach dem sudlichen Spanien beschriebenen Bienen., J. D. Alfken and H. Bischoff; Sitzungsberichte der Gesellschaft naturforschender Freunde ausgeben
Studies on the Apoidea of Western Nova Scotia with Special Reference to Visitors to Apple Bloom, C. E. Atwood; Canadian Journal of Research
The Nearctic Social Wasps of the Subfamily Polybiinae (Hymenopetra; Vespidae), Joseph Bequaert; Entomologica Americana
The Nesting Habits of Paranysson, an African Genus of Fossorial Wasps (Hymenoptera, Sphegoidea)., Joseph Bequaert; Entomological News
Some Physiological Effects of Ultraviolet Radiation on Honeybees, Lloyd M. Bertholf; Journal of Agricultural Research
Apple Pollination Studies in the Annapolis Valley, N.S. Canada, W. H. Brittain
A Study in the Relative Constancy of Hive Bees and Wild Bees in Pollen Gathering, W. H. Brittain and Dorothy E. Newton; Canadian Journal of Research
The Sting of a Tarantula Wasp, Stanley W. Bromley; Bulletin of the Brooklyn Entomological Society
African Bees of the Genus Coelioxys, T. D. A. Cockerell; Annals and Magazine of Natural History
African Bees of the Genus Megachile, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
A New Alcidamea (Hymenop.: Megachilidae)., T. D. A. Cockerell; Entomological News
A New Parasitic Bee Taken by Admiral Lynes in Morocco, T. D. A. Cockerell; The Entomologist
Bees Collected at Borego, California, by Wilmatte P. Cockerell and Milene Porter, T. D. A. Cockerell; The Pan-Pacific Entomologist
Bees Collected at Borego, California, by Wilmatte P. Cockerell and Milene Porter, T. D. A. Cockerell; The Pan-Pacific Entomologist
Bees collected by Mrs. Maurice T. James in Pingree Park, Colorado, T. D. A. Cockerell; Annals of the Entomological Society of America
Bees from the Belgian Congo: A New Anthophora obtained in the Kivu District by S.A.R. le Prince Leopold, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Bees from the Belgian Congo: Gronoceras and Digronoceras; A Case of Deceptive Resemblance, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Bees from the Belgian Congo Gronoceras felina and species of Megachile, and apparent case of Müllerian Mimicry, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Bees from the Belgian Congo Some Species of Gronoceras (Megachilidae), T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Bees from the Belgian Congo The acraensis group of Anthrophora, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Bees from the Belgian Congo: The Genus Euaspis, Gerstacker, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Bees from the Belgian Congo: The Genus Eucara, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Bees of the Genus Colletes from South Africa, T. D. A. Cockerell; The Entomologist
Descriptions and Records of Bees - CXL, T. D. A. Cockerell; Ann. & Mag. N. Hist.
Descriptions and Records of Bees - CXL, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - CXLI, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - CXLII, T. D. A. Cockerell; Ann. & Mag. N. Hist.
Descriptions and Records of Bees - CXLII, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - CXLIII, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - CXLIV, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - CXLIV, T. D. A. Cockerell; Ann. & Mag. N. Hist.
Descriptions and Records of Bees - CXLV, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - CXLVI, T. D. A. Cockerell; Ann. & Mag. N. Hist.
Descriptions and Records of Bees - CXLVI, T. D. A. Cockerell; Annals and Magazine of Natural History
New Carpenter Bees from South Africa, T. D. A. Cockerell; The Entomologist
New or Little-Known Western Bees, T. D. A. Cockerell; The Pan-Pacific Entomologist
Records of African Bees. II, T. D. A. Cockerell; The American Museum of Natural History
Rocky Mountain Bees - IV, T. D. A. Cockerell; American Musueum Novitates
Some African Nomiine Bees, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Some Bees of the Genus Ctenoplectra from the Belgian Congo, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Some Wasp-Like Bees from Guatemala, T. D. A. Cockerell; Psyche
South African Bees of the Genus Anthophora, T. D. A. Cockerell; Annals and Magazine of Natural History
The Bees of Australia, T. D. A. Cockerell; Australian Zoologist
The Excessive Abundance of Certain Bees, T. D. A. Cockerell; The American Naturalist
The Relationships of Scrapter, A Genus of African Bees, T. D. A. Cockerell; Proceedings of the National Academy of Sciences
The Subgenus Creightonella of Megachile, T. D. A. Cockerell; Rev. Zool. Bot. Afr.
Laboratory Culture of the Drone Fly, Eristalis Tenax, William L. Dolley Jr., C. C. Hassett, and W. J. Bowen; Science
Wykaz Żadłòwek Zebranych w Polsce Środkowej, Kazimierz Drogoszewski; Entomologiczne
Honey Bees in Relation to Lucerne Seed Setting, R. E. P. Dwyer and S. L. Allman; Agricultural Gazette of N.S.W.
Notes on American Spiders of the Family Thomisidæ, W. J. Gertsch; American Museum Novitates
A Note on Andrena Nudimediocornis Vier. Andrena pallidiscopa trifasciata, Philip H. Timberlake and T. D. A. Cockerell; The Pan-Pacific Entomologist
Proceedings of the Utah Academy of Sciences, Utah Academy of Sciences
1932
Records of Dipterous Insects of the Family Tachinidae Reared by the Late George Dimmock, with Descriptions of one New Species and Notes on the Genus Anetia Robineau-Desvoidy, J. M. Aldrich; Proceedings of the United States National Museum
Beitrage zur Kenntnis palaarktischer Bienen. (Hym. Apid.) 1. Beitrag, J. D. Alfken; Mitt. D. ent. Ges. Jahrg.
Beitrag zur Kenntnis der Chalicodoma-Arten von Aegypten, J. D. Alfken; Bull. Soc. Ent. Egypte.
Die mir bekannten Anthidium-Arten Aegypten's (Hymenoptera-Apoidea), J. D. Alfken; Bulletin de la Societe Royale Entomologique d' Egypte
Eine neue deutsche Heriades-Art., J. D. Alfken; Konowia
Ueber die von Erichson in Waltl, Reise durch Tyrol, Oberitalien und Piemont nach dem sudlichen Spanien beschriben Bienen, J. D. Alfken
New Species of Ethiopian Sphegidae, G. Arnold; Occasional Papers of the Rhodesian Museum
An Arboreal Nest of Bombus fervidus (Fabricius)., Joseph Bequaert; Bulletin of the Brooklyn Entomological Society
A Tentative Synopsis of the Hornets and Yellow-jackets (Vespinae; Hymenoptera) of America, Joseph Bequaert; Entomologica Americana
Appunti sulle Api parassite e descrizione di una nuova specie: Dioxys (Sottogenere Paradioxys, Mocs) Giovanellii, mithi, Francesco Biegeleben; Studi Trentini
Ein neuer deutscher Crabro (Crossocerus)(Hym. Crabron.), H. Bischoff; Mittheilungen. D. Entomol. Gesellschaft
Beiträge zur Synonymie der Bienengattung Halictus Latr. (Hym. Apid.) VIII., Paul Blüthgen
Apuntes Sobre Costumbres de Trypoxylon Palliditarse Sauss. (Hymenoptera), Carlos Bruch; Anales de la Sociedad Científica Argentina
Growing-Alfalfa Seed, John W. Carlson
Hunting Insects in the South Seas, L. Evelyn Cheesman
Biological Notes on Cuban Wasps and their Parasites, Richard P. Dow; Psyche
Dalle Torre's Genera, O. W. Richards
1931
Beitrag zur Kenntnis der Megachile-Arten von Japan. (Hym., Apid.), J. D. Alfken; Deutsch. Ent. Zeitschr.
Beitrag zur Kenntnis einiger Bienen von Spanien und Nord-Afrika. (Hym.), J. D. Alfken; Stettiner Entomologische Zeitung.
Eine neue palaarktische Tetralonia-Art. (apid. Hym.), J. D. Alfken; Mitt. D. ent. Ges. Jahrg.
Uber das Walliser Chalicodoma baeticum. (Hym. Apid.), J. D. Alfken; Mitt. D. ent. Ges. Jahrg.
Was ist Apis (Nomada) ferruginata L.?, J. D. Alfken; Mitt. D. ent. Ges. Jahrg.
Zur Kenntnis einiger palaearktischer Bienen und Beschreibung einer neuen Art von Teneriffa., J. D. Alfken
Etude sur les ndifications de l'Halictus malachurus K. (forma longulus) generation d'ete., E. Aptel; Bull. soc. ent.
Descriptions de Nouvelles Especes Africaines du Genre Heriades, Raymond Benoist; Annales de la Societe Entomologique de France
Les Osmies de la Faune Francaise, Raymond Benoist; Annales de la Societe Entomologique de France
Morroccan Folded-Winged Wasps, Mainly Collected by Professor T.D.A. Cockerell's Party, Joseph Bequaert; Journal of the New York Entomological Society
Note on Odynerus bermudensis, with a Description of the Male (Hymenoptera: Vespidae), Joseph Bequaert; Entomological News
The Color Forms of the Common Hornet, Vespa crabro Linnaeus., Joseph Bequaert; Konowia
New West Indian Diploptera, Joseph Bequaert and George Salt; Annals of the Entomological Society of America
Reactions of the Honeybee to Light, Lloyd M. Bertholf; Journal of Agricultural Research
Der Typus der Mutilla dubia F. -- ein Gynander., H. Bischoff; Mittheilungen. D. Entomol. Gesellschaft
Estratto dal Bolllettino della Società Entomologica Italiana, H. Bischoff; Bollettino della Società Entomological Italiana
Hymenopteren aus dem nördlichen und östlichen Spanien, H. Bischoff; Senckenbergiana
Über den Typus der Mutilla erythrocephala Fabr. (Hym.), H. Bischoff; Mittheilungen. D. Entomol. Gesellschaft
Ueber einige von Illiger beschriebene Apiden (Hym.), H. Bischoff and H. Hedicke; Sitzungsberichte der Gesellschaft Naturforschender Freunde
On the Identity of Scolia Mansueta Gerstaecker and Funerea Gribodo, with Description of a New Species Commonly Misidentified as the Former (Hymenoptera - Scoliidae), James Chester Bradley; Memorie della Scocietà Entomologica Italiana
Laboratory Report on Bee Pollen Analysis, O. Bretherick
Insects from the Miocene (Latah) of Washington, F. M. Carpenter, T. D. A. Cockerell, Clarence H. Kennedy, Thomas E. Snyder, and H. F. Wickham; The Entomological Society of America
Insects from the Miocene (Latah) of Washington, F. M. Carpenter, T. D. A. Cockerell, Clarence H. Kennedy, Thomas E. Snyder, and H. F. Wickham; Annals of the Entomological Society of America
Digger Wasps and Buprestidae (Hym.: Cerceridae, Coleop.: Buprestidae)., O. L. Cartwright; Entomological News
African Bees of the Family Megachilidae (Gronoceras and Megachilidae) from Liberia and Belgian Congo, T. D. A. Cockerell; Revue de Zoologie et de Botanique Africaines
A New Bee of the Genus Andrena from Canada, T. D. A. Cockerell; The Canadian Entomologist
A Peculiar Pangurine Bee from Arizona, T. D. A. Cockerell; Proceedings of the Entomological Society of Washington
Bees Collected by the Reverend O. Piel in China, T. D. A. Cockerell; American Museum Novitates
Bees Obtained by Professor Claude R. Kellogg in the Foochow Disctrict, China with New Records of Philippine Bombidæ, T. D. A. Cockerell; American Museum Novitates
Bees of the Genus Megachile from Africa, T. D. A. Cockerell; Annals and Magazine of Natural History
Descriptions and Records of Bees - CXXIX, T. D. A. Cockerell; Annals and Magazine of Natural History