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

Diagnostic Features
  • Description: Body cylindrical, elongate. Antennae 11-segmented with a distinct, 2-segmented club. Antennal setation sparse. Subantennal grooves present, as long as eyes. Eyes large, well-developed, facets fine. Pronotum subquadrate, with several raised areas and depressions. Lateral pronotal margins finely serrate. Procoxal cavities open. Metacoxae narrowly separated, separation less than metacoxal length. Elytra weakly carinate, with two rows of large, nearly contiguous punctures between carinae. Tarsal formula 4-4-4. Dorsal surface bi-colored, vestiture consisting of patches of pale setae.
  • Similar genera: The genus Eudesma is extremely distinctive and is not readily confused with other zopherid genera.
Known Distribution
  • Northeast (PA, VA) and North Central (IL, IN, OH) USA.
Biology
  • Eudesma undulata has been collected from under the bark of dead trees, including buckeye (Aesculus glabra) and oak (Quercus).

  • Abundance: Rare.
North American Species (1)

Eudesma undulata (Melsheimer, 1846)

Selected References  

Eudesma undulata
© 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.