Pachybrachis, VIDUATUS

Riley, Edward G. & Barney, Robert J., 2015, Definition And Revision Of The Viduatus Species- Group Of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae), The Coleopterists Bulletin 69 (1), pp. 25-59 : 29-30

KEY TO MALES OF THE PACHYBRACHIS VIDUATUS SPECIES- GROUP

1. Elytral pattern non-vittate............................2

1′. Elytral pattern vittate...................................5

2. Color of pale pronotal markings pale yellowish; elytral pattern consisting of patchwork of yellow and black, apical declivity mostly yellow...............................................3

2′. Color of pale pronotal areas red or orange; elytra entirely black or basally with scattered orange maculae (or rarely mostly orange), apical declivity black...................................4

3. En-face outline of median lobe with shaft widest at apicolateral margin, side margins

5) P. intricatus , lectotype; 6) P. deceptor , holotype; 7) P. picturatus . evenly, broadly and rather distinctly emarginate behind; beard consisting of conspicuous wisp on each side ( Fig. 8 ).......................................... .................... 1. P. deceptor Riley and Barney , new species

Figures

Figs. 8–11. Pachybrachis species, median lobe, en-face and lateral views. 8) P. deceptor; 9) P. m-nigrum;