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A revision of the North American ichneumon-flies of the subfamily Opiinae
Date:
1915
Citation:
Gahan, A. B. 1915. "A revision of the North American ichneumon-flies of the subfamily Opiinae." Proceedings of the United States National Museum. 49 (2095):63–95, 2 pls.. https://doi.org/10.5479/si.00963801.49-2095.63
