Charles Darwin was known in his youth as a beetle collector. [5][6] Thomas Reid Davys Bell 1863 1948 Ireland Lepidoptera John Frederic Dawson 1802 1870 England Coleoptera - Carabidae Charles De Geer 1720 1778 Sweden Coleoptera José María Hugo de la Fuente Morales 1855 1932 Spain Coleoptera Pierre François Marie Auguste Dejean 1780 1845 France Coleoptera Georges Demoulin 1919 1994 Belgium Ephemeroptera Michael Denis 1729 1800 Austria Lepidoptera Robert Denno 1945 2008 United States Lepidoptera Thomas Desvignes 1812 1868 England Hymenoptera Vincent Dethier 1915 1993 United States Thierry Deuve 1956 France Coleoptera Achille Deyrolle 1813 1865 France Coleoptera Harry Frederick Dietz 1890 1954 United States Economic entomology William Lucas Distant 1845 1922 United Kingdom Frederick Augustus Dixey 1855 1935 United Kingdom Lepidoptera Rennie Wilbur Doane 1871 1942 United States Diptera Theodosius Dobzhansky 1900 1975 Ukraine / United States Paul Dognin 1847 1931 France Lepidoptera William Doherty 1857 1901 United States Lepidoptera Carl August Dohrn 1806 1892 Germany Coleoptera Horace Donisthorpe 1870 1951 United Kingdom Coleoptera; Hymenoptera: Formicidae Charles Donovan 1863 1951 Ireland Lepidoptera Edward Donovan 1768 1837 Ireland Alcide d'Orbigny 1802 1857 France Edward Doubleday 1810 1849 United Kingdom Lepidoptera Henry Doubleday 1808 1875 United Kingdom Lepidoptera John William Douglas 1814 1905 United Kingdom Lepidoptera Max Wilhelm Karl Draudt 1875 1953 Germany Lepidoptera Alexander Kirilow Drenowski 1879 1967 Bulgaria Herbert Druce 1846 1913 United Kingdom Lepidoptera Dru Drury 1725 1804 United Kingdom Catherine N. Duckett 1961 United States Coleoptera Oswald Duda 1869 1941 Germany Diptera Léon Jean Marie Dufour 1780 1865 France Caspar Erasmus Duftschmid 1767 1821 Austria Coleoptera Lionel Jack Dumbleton 1905 1976 New Zealand Lepidoptera André Marie Constant Duméril 1774 1860 France Coleoptera Philogène Auguste Joseph Duponchel 1774 1846 France Lepidoptera Henry Dupont 1798 1873 France Coleoptera Gabriel Dupuy 1840 1913 France Lepidoptera Harrison Gray Dyar Jr. 1866 1929 United States Diptera Jan Dzierżon 1811 1906 Poland Hymenoptera E Alfred Edwin Eaton 1845 1929 United Kingdom Diptera, Ephemeroptera Karl Eckstein 1859 1939 Germany Lepidoptera Frederick Wallace Edwards 1888 1940 United Kingdom Diptera Henry Edwards 1827 1891 United Kingdom / Australia / United States Lepidoptera J. Gordon Edwards 1919 2004 United States William Henry Edwards 1822 1909 United States Lepidoptera Johann Egger 1804 1866 Austria Diptera Georg Dionysius Ehret 1708 1770 Germany Paul R. Ehrlich 1932 United States Lepidoptera Curt Eisner 1890 1981 Germany Lepidoptera Henry John Elwes 1846 1922 United Kingdom Lepidoptera Alfred E. Emerson, Jr.