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On The Œconomy Of The Chrysides Parasitic On Odynerus Spinipes, T. Algernon Chapman Dec 1868

Descriptions Of North American Bees No. 1, Ezra Townsend Cresson Dec 1868

Catalogue Of A Small Collection Of Hymenoptera Made In New Mexico During The Summer Of 1867, Ezra Townsend Cresson Jan 1868

Indian Depredations In Utah: Memorial Of The Legislative Assembly Of Utah Territory, Preview For An Appropriation To Pay For Indian Depredations And Expenses Inenrred In Supressing Indian Hostilities, U.S. House Of Representatives Jan 1868

Prospetto Sistematico Deli Imenotteri Italiani, Achille Costa Jan 1867

Hyménoptères Nidifiants, Joseph-Étienne Giraud Dec 1865

Catalogue Of Hymenoptera In The Collection Of The Entomological Society Of Philadelphia, From Colorado Territory, Ezra Townsend Cresson Jan 1865

On The Hymenoptera Of Cuba, Ezra Townsend Cresson Dec 1864

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

Letter From The Secretary Of The Interior, Tranmitting Report Of The Investigation Of The Acts Of Gevernor Young, Ex Officio Superintendent Of Indian Affairs In The Utah Territory, U.S. House Of Representatives Jan 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

Report Of The Secretary Of War: Wagon Road Routes In Utah Territory, John B. Floyd, J. C. Breckinridge, J. C. Woodruff, U.S. Senate, Bureau Of Toppographical Engineers Feb 1859

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