Pachybrachis confusus, Bowditch, 1909

Barney, Robert J., 2019, Key to All Sixty-Four Species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) in the Eastern USA, The Coleopterists Bulletin 73 (1), pp. 85-96 : 89

40. Eyes widely separated (IOD> 0.32 mm); pronotum black, margined with yellowish white; face yellow with black median line extending down from vertex between eyes, forming distinctive paired, inverted, yellow, triangular maculae; median lobe in en-face view with ALM gently curved to rounded terminus; OS circular, basal plates sclerotized; beard with long setae visible from ALM to terminus; in lateral view, shaft of median lobe inflated but truncate ............ ......... 14. P. confusus Bowditch (in part)