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1952
New Speci of African Hymenoptera, G. Arnold; National Museums of South Rhodesian
The Action of the Proventriculus of the Worker Honeybee, Apis Mellifera L., L. Bailey; Journal of Expiremental Biology
Dalsi Prispevek K Poznani Blanokridleho Hmyzu Csr. (Aculeata), Vladimir Balthasar; Acta Societatis Entomol. Cechosl.
Prispevek K Poznani Blanokridleho Hmyzu Slovenska, Vladimir Balthasar
Sphecidae of Portugal Genus Miscophus Jurine, Nuno Freire de Andrade; Memorias e Estudos do Museu Zoologico da Universidade de Coimbra
1951
Sphecidae and Pompilidae collected by Mr. K.M. Guichard in West Africa and Ethiopia, George Arnold; Bulletin of the British Museum
1949
Pollen us Minor Elements Relation to Sex of the Plant, L. C. Antles; Commercial Fertilizer
1947
A key to the African genera of the Apidae, George Arnold; Journal of Entomological Society of South Africa
Notes on the Dasymutilla of the Palo Verde Valley, California with the Description of a New Species, William F. Barr and Paul D. Hurd Jr.; The Pan-Pacific Entomologist
1945
The Sphecidae of Madagascar, George Arnold
1943
Natural crossing of white clover by bees, Sanford S. Atwood; Journal of American Society of Agronomy
1941
Controlled self and cross-pollination of Trifolium, Sanford S. Atwood; Journal of American Society of Agronomy
A New Genus of Psammocharid Wasp from China, Paul Peter Babiy; Proceedings form the United States National Museum
1940
Cross-Pollination of Red Clover by Honey Bees, J. M. Armstrong; Scientific Agriculture
Germination and Development of cotton pollen in intravarietal crosspollination, L. G. Arutunova; Jarovisacija
1939
Apis griseocollis DeGeer-Bombus separatus Cresson. (Hymenoptera: Bombidae), Paul Peter Babiy; Entomological News
1938
Eine neue Osmia-Art (Hymenoptera) der bulgarischen Fauna., Neno Atanassov; Mitt. Naturaw. Inst. Sofia
1936
New Varieties and Pollination of Muscandine Grapes, W. D. Armstrong; Proceedings of the American Society for Horticulture Science
1935
Factors Influencing Seed-Setting in Alfalfa, J. M. Armstrong and W. J. White; The Journal of Agricultural Science
1934
The Genera Halictus and Andrena in Western Nova Scotia, C. E. Atwood; Canadian Journal of Research
1933
Studies on the Apoidea of Western Nova Scotia with Special Reference to Visitors to Apple Bloom, C. E. Atwood; Canadian Journal of Research
1932
New Species of Ethiopian Sphegidae, G. Arnold; Occasional Papers of the Rhodesian Museum
1931
Etude sur les ndifications de l'Halictus malachurus K. (forma longulus) generation d'ete., E. Aptel; Bull. soc. ent.
1928
The Sphegidae of South Africa, George Arnold; Annals of the Transvaal Museum
1925
Neues zum Hummelproblem, Paul Peter Babiy; Zeitschrift f. wissensch Zoologie
1921
Real Sociedad Espanola De Historia Natural, Enrique Asensio
1920
Zum Problem der Bienenzelle, Ludwig Armbruster; Bucherei fur Bienenkunde
Notes Supplementaires Sur Les Bourdons de la Belgique, F. J. Ball; Annales de la Societe Entomologique de Belgiqua
1919
Halictinae de Cuba, Carl F. Baker; Primer Informe Annual de la Estacion Central Agronomica de Cuba
New Psammocharidae and Philanthidae, Nathan Banks; The Canadian Entomologist
Notes and Descriptions of Some Fossorial Hymenoptera, Nathan Banks; The Canadian Entomologist
The Psammocharidae of Western North America, Nathan Banks; Bulletin of the Museum of Comparative Zoology
1915
Parnassius apollo in Bayern und einigen Grenzbezirken, Max Bachmann; Mitteilungen der Munchner entomologischen Gesellschaft, e.V.
1914
Problem des Hummelstaates, Ludwig Armbruster; Sonderabdruck aus dem Biologischen Centralblatt
Nachtrage und Berichtigungen zu Burgeff H., Kommentar zum Katalogus Lepidopterorum (Gattung Zygaena) im laufenden Jahrgang der Mitt. Der Munch. Ent. Ges. P.35-70, Max Bachmann; Mitteilungen der Munchner entomologischen Gesellschaft, e.V.
Nachtrage und Berichtigungen zu Burgeff H., Kommentar zum Katalogus Lepidopterorum (Gattung Zygaena) im laufenden Jahrgang der Mitt. Der Munch. Ent. Ges. P.35-70, Max Bachmann; Mitteilungen der Munchner entomologischen Gesellschaft, e.V.
Les Bourdons de la Belgique, F. J. Ball; Annales de la Societe Entomologique de Belgiqua
1913
Chromosomenverhaltinisse bei der Spermatogenese solitarer Apiden (Osmia oornuta Latr.), Ludwig Armbruster; Archiv f. Zellforschung, Leipzig
1912
Notes on the Eastern Species of Cerceris (Hym. Philanthidae), Nathan Banks; Annals Entomological Society of America
1911
Psammocharidae, Nathan Banks; Journal of the New York Entomological Society
1909
Studies in Oxybelidae I, Carl F. Baker; Pomona College Journal of Entomology
1907
Hymenoptera Two New Bees of the Genus Ceratina, Carl F. Baker; Invertebrata Pacifica
1906
Hymenoptera the Bee Genus Pasiphae in North America, Carl F. Baker; Invertebrata Pacifica
1905
Additions to the Recorded Hymenopterous Fauna of the Phillipine Islands, with Descriptions of New Species, William H. Ashmead; Proceedings of the U.S. National Museum
1904
A List of the Hymenoptera of the Phillipine Islands, with Descriptions of New Species, William H. Ashmead; Journal of the New York Entomological Society
A New Genus and Some New Species of Hymenoptera from the Phillipine Islands, William H. Ashmead; The Canadian Entomologist
Descriptions of New Genera and Species of Hymenoptera from the Phillipine Islands, William H. Ashmead; Proceedings of the U.S. National Museum
Descriptions of Two New Hymenoptera from Japan - I, William H. Ashmead; Journal of the New York Entomological Society
Hymenoptera of Alaska, William Harris Ashmead; Proceedings of the Washington Academy of Sciences
Svensk Insektfauna Steklar Gaddsteklar Andra Rofsteklar, C. Aurivillius; Entomologisk Tidskrift Arg.
1903
A New Ammoplanus, William H. Ashmead; Entomological News
A New Paranomia from British Columbia, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.11, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.12, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.13, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.17, William H. Ashmead; The Canadian Entomologist
Svensk Insektfauna Trettonde Steklar, C. Aurivillius; Entomologisk Tidskrift Arg.
1902
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.10, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.5, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.6, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.7, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.8, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.9, William H. Ashmead; The Canadian Entomologist
Papers from the Harriman Alaska Expedition, William Harris Ashmead; Proceedings of the Washington Academy of Sciences
Sleeping Habits of Certain Hymenoptera, Nathan Banks; Journal of the New York Entomological Society
1901
New Species of Evaniidae, William Harris Ashmead; The Canadian Entomologist
1900
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.1, William H. Ashmead; The Canadian Entomologist
Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.2-4, William H. Ashmead; The Canadian Entomologist
Report upon the Aculeate Hmenoptera of the Islands of St. Vinvent and Grenada, with additions to the Parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies., William H. Ashmead; Trans. Ent. Soc. Lond. 1900 Part II
1899
A Generic Table of the Family Panurgidae: A Reply to Mr. Cockerell's Critique on the Segregation of Perdita Cockerell, William H. Ashmead; Psyche
Classification of the Bees or the Superfamily Apoidea, William H. Ashmead; Transactions American Entomological Society
Four New Entomophilous Wasps, William H. Ashmead; Entomological News
Four New Species Belonging to the Genus Plenoculus Fox, William H. Ashmead; Psyche
Super-Families in the Hymenoptera and Generic Synopses of the Families Thynnidae, Myrmosidae and Mutillidae, William H. Ashmead; Psyche
Three New Species in the Genus Diploplectron Fox (Hymenoptera), William H. Ashmead; Entomological News
1898
Some New Genera of Bees, William H. Ashmead; Psyche
Thynnidae in the United States, William H. Ashmead; Psyche
Two New Genera of Sand Wasps, William H. Ashmead; Entomological News
1897
Descriptions of Two New Fossorial Wasps, William H. Ashmead; Psyche
Nitelopterus, A New Larrid Genus, William H. Ashmead; Entomological News
1896
On the Affinities of Neolarra, Carl F. Baker; Entomological Society of Washington
Alcidamea Producta Cress. And its Parasites, A Davidson; Entomological News
1895
Rhopalosmodiae, A New Family of Fossorial Wasps, William H. Ashmead; Proceedings of the Entomological Society of Washington
1894
Apum Mohileviensium species novae, parum cognitae, vel imperfecte descriptae, N. Arnold; Hor. Soc. Ent.
The Habits of the Aculeate Hymenoptera. I, William H. Ashmead; Psyche
The Habits of the Aculeate Hymenoptera. II, William H. Ashmead; Psyche
The Habits of the Aculeate Hymenoptera. III, William H. Ashmead; Psyche
The Habits of the Aculeate Hymenoptera. IV, William H. Ashmead; Psyche
1890
On the Hymenoptera of Colorado; Descriptions of New Species, Notes, and a List of the Species Found in the State, William H. Ashmead; Bulletin No. I of the Colorado Biological Association
1887
Les Nids des Megachiles, E. Andre; Le Naturaliste
1885
Apum Mohileviensium species parum cognitae vel imperfecte descriptae, N. Arnold; Hor. Soc. Ent.
1839
Deuxieme lettre pour servir de materiaux a l'histore des insectes; contenant des observations sur les moeurs des olyneres, J. V. Audouin; Annales des Sciences Naturalles