loo OHIO BIOIvOGICAI. SURVEY 



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Snow, W. A. 



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Verrall, G. H. 



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Walsh, B. D. 



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Westcott, Oliver C. 



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Wheeler, Wm. M. 



Microdon Larvae in Pseudomyrma Nests. Psyche, July 1901, 222, fig; Journ. N. Y. 

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Williston, Samuel W. 



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