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The forms of the common Old World swallowtail butterfly (<I>Papiliomachaon</I>) in North America, with descriptions of two new subspecies
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The forms of the common Old World swallowtail butterfly (Papiliomachaon) in North America, with descriptions of two new subspecies
Date:
1932
Citation:
Clark, Austin Hobart. 1932. "The forms of the common Old World swallowtail butterfly (Papiliomachaon) in North America, with descriptions of two new subspecies." Proceedings of the United States National Museum. 81 (2934):1–15, 8 pls.. https://doi.org/10.5479/si.00963801.81-2934.1
