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Ezra Townsend Cresson, also Ezra Townsend senior (18 June 1838, Byberry - 19 April 1926, Swarthmore) was an American entomologist who specialised in Hymenoptera. He wrote ''Synopsis of the families and genera of the Hymenoptera of America, north of Mexico'' Philadelphia: Paul C. Stockhausen, Entomological printer (1887) and many other works. His son Ezra Townsend, Jr. (1876-1948) was also an entomologist but a specialist in Diptera. ==References== *Essig, E. O. 1931 ''A History of Entomology''. -New York, Macmillan Company. *Mallis, A. 1971 ''American Entomologists''. Rutgers Univ. Press New Brunswick 343-348, Portr. *Osborn, H. 1937 ''Fragments of Entomological History Including Some Personal Recollections of Men and Events.'' Columbus, Ohio, Published by the Author. *Osborn, H. 1952 ''A Brief History of Entomology Including Time of Demosthenes and Aristotle to Modern Times with over Five Hundred Portraits''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ezra Townsend Cresson」の詳細全文を読む スポンサード リンク
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