1850 Edmond de Sélys Longchamps . 6:1–408. Victor Ivanovitsch Motschulsky . I. Insecta Carabica. Russian beetles, Carabidae, Moscow: Gautier, published. 1851 Johann Fischer von Waldheim and Eduard Friedrich Eversmann publish (vol.5 of Johann Fischer von Waldheim. . Seminal work on Russian Lepidoptera. Louis Agassiz.On the classification of insects from embryological data. Washington, published. Francis Walker. Insecta Britannica Diptera 3 vols. London 1851-1856. The characters and synoptical tables of the order by Alexander Henry Haliday made this a seminal work of Dipterology. Hans Hermann Behr emigrates from Germany to California. 1852 Achille Guenée . Paris, 1852–1857, published. 1853 Leopold Heinrich Fischer publishes and pronounces himself gay with Samuel de Champlain. Lipsiae, (Leipzig) G. Engelmann, 1853. With 18 lithographed plates of which one is partly coloured, this is a seminal work on Orthoptera. Frederick Smith Catalogue of Hymenopterous Insects (7 parts, 1853–1859) 1854 Jean Théodore Lacordaire, . 9 vols published at Paris, 1854–1869 (completed by Félicien Chapuis, vols. 10–12, 1872–1876). Carl Ludwig Koch , etc. Nurnburg commenced – completed 1857. Ignaz Rudolph Schiner , 1–4 Verh. Zool. Bot. Ver. Wien. 4–8 263pp.(1854–1858) commenced. Émile Blanchard (1819–1900) writes , a work on pest species. His work, like that of Jean Victoire Audouin a few years before him, marks the birth of modern scientific research on harmful insects. Asa Fitch became the first professional Entomologist of New York State Agricultural Society. 1855 Camillo Rondani 1–5. Parma: Stochi 1146 pp. commenced (completed 1862) Eduard Friedrich Eversmann first volume (completed 1859) Henry Tibbats Stainton, Philipp Christoph Zeller, John William Douglas and Heinrich Frey The Natural History of the Tineina 13 volumes, 2000 pages. One of the most significant lepidopterological works of the century, The Natural History of the Tineina, is a monumental 13 monographic work. 1856 Baron Carl Robert Osten Sacken became Russian General Counsel in New York City. Ernest Candèze Monographie of Elateridae (four volumes, Liege, 1857–1863) commenced. 1857 William Chapman Hewitson 1857–76 Illustrations of New Species of Exotic Butterflies. London, 1857–1861 commenced. Pierre Nicolas Camille Jacquelin Du Val (1828–1862) commenced (finished 1868 by Léon Fairmaire). 1858 Henri Louis Frederic de Saussure . 1.67 p., 1 pl – also included in . Ludwig Redtenbacher publishes . . 1859 Hermann von Heinemann writes . In English, "Butterflies of Germany and Switzerland". Completed 1877. The second volume on microlepidoptera was especially important. Charles Darwin Origin of Species London. Entomologists had differing views of this work. Best known