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A revision of the North American two-winged flies of the family Therevidae
Date:
1923
Citation:
Cole, Frank R. 1923. "A revision of the North American two-winged flies of the family Therevidae." Proceedings of the United States National Museum. 62 (2450):1–140, 3 figs., 13 pls.. https://doi.org/10.5479/si.00963801.62-2450.1
