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2. The Comparative Ethology and Evolution of the Sand Wasps;Evans,1966
3. Comparative ethology of solitary wasps;Evans;University of Wyoming National Park Service Research Center Annual Report.,1977
4. Observations on aggregations of males of two species of beewolves (Hymenoptera: Sphecidae: Philanthinae);Evans;Psyche,1993
5. Notes on a sleeping aggregation of solitary bees and wasps;Evans;Bull. Southern California Acad. Sci.,1960