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Descriptions Of North American Hymenoptera, In The Collection Of The Entomological Society Of Philadelphia, Ezra Townsend Cresson Jun 1864

Descriptions Of Several New Species Of North American Apidae, Ezra Townsend Cresson Apr 1864

On The North American Species Of Several Genera Of Apidae, Ezra Townsend Cresson Dec 1863

On The North American Species Of The Genus Osmia, Ezra Townsend Cresson Dec 1863

Proceedings Of The Entomological Society Of Philadelphia, Ezra Townsend Cresson Nov 1863

List Of The North American Species Of Bombus And Aporthus, Ezra Townsend Cresson, Wm. H. Edwards Dec 1862

Hyménoptères Recueillis Aux Environs De Suse, En Piémont, Et Dans Le Départment Des Hautes-Alpes, En France; Et Description De Quinze Espèces Nouvelles, Joseph-Étienne Giraud Dec 1862

Nuovi Studii Sulla Entomologia Della Calabria Ulteriore, Achille Costa Aug 1862

Hymenoptera. Hautflügler., A. Gerstaecker Dec 1861

Fragments Entomologiques, Joseph-Étienne Giraud Dec 1861

Iii. Sur Une Nouvelle Espèce D'Astata, M. Léon Dufour Dec 1860

Nogle Iagttagelser Over Humlerne, S. Bretton Dec 1860

Review Of The American Bombidæ, Together With A Description Of Several Species Heretofore Undescribed, Being A Synopsis Of The Species Of This Family Of Hymenopterous Insects Thus Far Known To Inhabit North America, John W. Greene Apr 1860

Ricerche Entomologiche Sui Monti Partenii, Achille Costa Jan 1858

Megachile Centuncularis, J. W. Douglas Jan 1858

Diagnosen Der Von Peters In Mossambique Gesammelten Käfer Und Hymenoptera, A. Gerstaecker Oct 1857

Decription De Quelques Hyménoptères Nouveaux Ou Rares, Joseph-Étienne Giraud Dec 1856

Signalaments De Quelques Espèces Nouvelles Ou Peu Connues D'Hyménoptères Algériens, M. Léon Dufour Jan 1853

Fauna Hymenopterologica Volgo-Uralensis, E. Eversmann Jan 1852

Mémoire Sur Les Insectes Hyménoptères Qui Nichent Dans L'Intérieur Des Tiges Sèches De La Ronce, M. Léon Dufour, Édouard Perris Jan 1840

Deuxieme Lettre Pour Servir De Materiaux A L'Histore Des Insectes; Contenant Des Observations Sur Les Moeurs Des Olyneres, J. V. Audouin Dec 1838

Bomborum Psithyrorumqve Daniæ Enumeratio Critica, C. Drewsen, Georg. Schiödte Dec 1837

Fortegnelfe Over De Danfke Arter Af Slægterne Bombus Og Psithyrus, Chr. Drewsen, J. Gchiødte Dec 1837

On A Species Of Bee From The Brazils, Found Living On Splitting A Log Of Peach Wood Containing Its Comb., H. Bigg Oct 1834

Insectes, Gaspard Auguste Brullé Dec 1831

Osservazioni Per Servire Alla Storia Naturale Dell' Anthidium Contractum, Latr. E Della Cerceris Aurita, Fabr., Carlo Giuseppe Genè Dec 1830

Illustrations And Descriptions Of The Genera Of Insects Found In Great Britian And Ireland Containing Coloured Figures From Nature Of The Most Rare And Beautiful Species, And In Many Instances Of The Plants Upon Which They Are Found, John Curtis Dec 1827

Systema Piezatorum Secundum Ordines, Genera, Species, Adiectis Synonymis, Locis, Observationibus, Descriptionibus, Johann Christian Fabricius Dec 1803

Systema Piezatorum Secundum Ordines, Genera, Species, Adiectis Synonymis, Locis, Observationibus, Descriptionibus, Johann Christian Fabricius Dec 1803

Illustratio Iconographica Insectorum, Antonio Joanne Coquebert Dec 1800