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A monograph of the North American Proctotrypidae
Date:
1893
Citation:
Ashmead, William H. 1893. "A monograph of the North American Proctotrypidae." Bulletin of the United States National Museum, (45) 1–472, 2 figs, 18 pls. https://doi.org/10.5479/si.03629236.45.1.
