Pachybrachis fortis, Fall, 1915

Barney, Robert J., 2023, Redescriptions of the Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) of Arizona, Including New Synonymies, State Records, Plant Associations, and Descriptions of New Species: The Robust Species, The Coleopterists Bulletin 77 (3), pp. 439-459 : 441

7. Yellow with diffuse areas of red-orange maculation; with very fine, almost imperceptible white pubescence ( Fig. 1 ) ..... 7. P. fortis Fall

7′. Primarily yellow with red-brown-black maculation but without white pubescence......... 8

8. Eyes narrowly separated, IOD < 0.21 mm.. 9

8′. Eyes widely separated, IOD> 0.31 mm... 10

Figures

Fig. 1. Pachybrachis fortis, Nogales, Arizona, lectotype. A) Dorsal habitus, B) Lateral habitus, C) Face, D) Pygidium, E) Median lobe of aedeagus, lateral view, F) Median lobe of aedeagus, en-face view.