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Redescription of Four Predominantly Yellow, Densely Punctate Species of Pachybrachis of the W. USA, and Description of a New Sp.
By Barney, R.J.
The Coleopterists Bulletin 74(4): 637-646. , 2020
Cite: 1926866 with citation markup [cite:1926866]

Barney, R.J. 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, The Coleopterists Bulletin 74(4): 637-646.


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

KEYWORDS: taxonomy, leaf beetles, Nearctic, plant association