Ezra Townsend Cresson

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.

Cresson also documented many new species including Nomada texana.

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