A new species of Pachybrachis Chevrolat from the western United States is described. Pachybrachis americanus Barney, new species, is similar in appearance to several other species that are predominantly yellow, densely punctate, with ocular lines and with front tarsal claws not enlarged: Pachybrachis densus Bowditch, Pachybrachis immaculatus Jacoby, Pachybrachis insidiosus Fall, and Pachybrachis jacobyi Bowditch. Descriptions, figures, and range maps are presented for each species.
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22 December 2020
Redescription of Four Predominantly Yellow, Densely Punctate Species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) of the Western USA, and Description of a New Species
Robert J. Barney
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The Coleopterists Bulletin
Vol. 74 • No. 4
December 2020
Vol. 74 • No. 4
December 2020
leaf beetles
Nearctic
plant association
taxonomy