Ironclad ID: Tool for Diagnosing Ironclad and Cylindrical Bark Beetles (Coleoptera: Zopheridae) of North America north of Mexico
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Genus: Coxelus

Diagnostic Features
  • Description: Antennae 11-segmented with a distinct, 2-segmented club. Antennal setation sparse. Subantennal grooves absent. Eyes small, reduced, coarsely faceted. Pronotal disc convex, lateral margins emarginate. Procoxal cavities open. Metacoxae moderately separated, separation slightly less than metacoxal length. Elytra with distinct striae composed of coarse, nearly confluent punctures. Tarsal formula 4-4-4. Dorsal surface with curved, recumbent setae.
  • Similar genera: The genus Coxelus is similar to the genera Stephaniolus and Megataphrus in having reduced eyes and wings absent. The distinctive antennal cavities on the hypomeron serve to distinguish Megataphrus, and the presence of subantennal grooves serve to distinguish Stephaniolus.
Known Distribution
  • Southern coastal range of California, USA.
Biology
  • Coxelus serratus have been collected sifting duff from Redwood trees, as well as under the bark of Douglas fir.

  • Abundance: Rarely encountered.
North American Species (1)

Coxelus serratus Horn, 1885

Selected References  

Coxelus serratus
© N.P. Lord

 

© 2011-2015 Lord, N.P., Nearns, E.H., and K.B. Miller
The University of New Mexico and Center for Plant Health Science and Technology, USDA, APHIS, PPQ.