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18 September 2017 Definition and Revision of the Spumarius Species-Group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae)
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Abstract

The spumarius species-group of Nearctic PachybrachisChevrolat, 1836 is defined and revised. The group is composed of one species: Pachybrachis spumariusSuffrian, 1852. A male specimen of P. spumarius, recently discovered in the Natural History Museum in London among some previously unrecognized type material of Suffrian, is herein designated as a lectotype. The synonymy of Pachybrachis roborisFall, 1915 with P. spumarius is confirmed, and Pachybrachis obfuscatusFall, 1915 is synonymized under P. spumarius, new synonymy. A description, figures, and range map are presented.

Robert J. Barney "Definition and Revision of the Spumarius Species-Group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae)," The Coleopterists Bulletin 71(3), 449-460, (18 September 2017). https://doi.org/10.1649/0010-065X-71.3.449
Received: 8 December 2016; Accepted: 19 July 2017; Published: 18 September 2017
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