North American Xyleborini north of Mexico: a review and key to genera and species (Coleoptera, Curculionidae, Scolytinae) Gomez, Demian F. Rabaglia, Robert J. Fairbanks, Katherine E. O. Hulcr, Jiri ZooKeys 2018 768 19 68 8HDYP Hopkins, 1915 Hopkins 1915 Insecta Curculionidae Coptoborus CoL Animalia Coptoborus Coleoptera 9 28 Arthropoda genus  Type species.  Coptoborus emarginatusHopkins Species of Coptoborusdiffer 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.