Template:Barney, 2017a

• Barney, R.J. 2017. Definition and revision of the spumarius species-group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae). The Coleopterists Bulletin 71(3): 449–460. DOI: 10.1649/0010-065X-71.3.449 .  
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• Date of publication: 18 September 2017
• ZooBank: AAE9A294-5A08-40B1-9020-6EADF0D9DD67
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