The forms of the common Old World swallowtail butterfly (Papiliomachaon) in North America, with descriptions of two new subspecies
Clark, Austin Hobart, 1880-1954
Article
1932
Proceedings of the United States National Museum
81
Issue: 2934
1--15
BioStor
English
Washington Smithsonian Institution Press, [etc.]
BioStor: https://biostor.org/reference/79770 DOI: https://doi.org/10.5479/si.00963801.81-2934.1
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