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Orlando Park (born Oct. 13, 1901, Elizabethtown, Ky., U.S.—died Sept. 23, 1969, Evanston, Ill.) was a U.S. entomologist known chiefly for his work on the biology and taxonomy of insects comprising the family Pselaphidae, a group of small, short-winged, mold beetles that commonly live in ant nests. Several years after acquiring his Ph.D. at the University of Chicago, Park joined the faculty of Northwestern University, Evanston, Ill., from which he ultimately retired (1968) as chairman...