Browsing by Author "Gregg, Robert Edmond, 1912-"
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Item A new ant of the genus Pheidole from Colorado. American Museum novitates ; no. 1557(New York : American Museum of Natural History, 1952) Gregg, Robert Edmond, 1912-Item The soldier caste of Pheidole (Ceratopheidole) clydei Gregg (Hymenoptera, Formicidae). American Museum novitates ; no. 1637(New York : American Museum of Natural History, 1953) Gregg, Robert Edmond, 1912-; Creighton, William Steel.; Creighton, William Steel, Mrs.