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The North American ichneumon-flies of the tribe Ephialtini
Date:
1920
Citation:
Cushma, R. A. 1920. "The North American ichneumon-flies of the tribe Ephialtini." Proceedings of the United States National Museum. 58 (2340):327–362, 1 fig., 1 pl.. https://doi.org/10.5479/si.00963801.58-2340.327
