North American Xyleborini north of Mexico: a review and key to genera and species (Coleoptera, Curculionidae, Scolytinae) Author Gomez, Demian F. Author Rabaglia, Robert J. Author Fairbanks, Katherine E. O. Author Hulcr, Jiri text ZooKeys 2018 768 19 68 http://dx.doi.org/10.3897/zookeys.768.24697 journal article http://dx.doi.org/10.3897/zookeys.768.24697 1313-2970-768-19 9160854B540D402DB6765AFF0BCE899B Coptoborus Hopkins, 1915 Type species. Coptoborus emarginatus Hopkins Species of Coptoborus differ from other members of the tribe by the type 3 antennal club, the light brown or yellowish color, and the narrowed or acuminate elytral apex. Figure 6. Lateral and dorsal view of Cnestus mutilatus . Scale bar" 1.0 mm.