Definition and Revision of the Atomarius Species-Group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae), Including Descriptions of Nine New Species
Barney, Robert J.
The Coleopterists Bulletin
2018
2018-03-23
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17. Body yellow-orange and black, pronotal M not distinct; arrowhead-shaped distal end of median lobe very large (AAW> 0.16 mm), narrowing at apicolateral margin to form a lateral ridge ( Fig. 14)....... 14. P. mcmeansiBarney, new species