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Coleoptera of Great Smoky Mountains National Park Species Pages

Family Eucnemidae

            Tribe Macraulacini

 Dromaeolus badius (Melsheimer)

Description and Taxonomy

Length 5-8 mm. The genus is an artificial collection of species and is hard to characterize (Muona 2000). However, many eastern species, including those found in GSMNP may be diagnosed by a combination of the following characters: deep narrow lateral antennal grooves, epipleura without groove, simple claws and elongate pronotum.  In the Nearctic Region, the genus is represented by nine species subdivided into four informal species groups.  Six species are distributed in the East (Muona 2000), and three are found in GSMNP. This species may be separated from the other GSMNP species by shorter pronotum pronotum, brown color and unicolored, yellowish body surface setae.

Life History

This is a  rare eucnemid species in GSMNP. The species was collected only once, under bark of an unidentified deciduous tree in April at 545  m elevation.  The life history  is poorly known. Reported host trees include Carya, Liriodendron, Populus and Salix (Muona 2000).

Distribution

Widespread, but uncommon eastern  North American species, known from Idaho and Quebec to Louisiana and Florida (Muona 2000).

Conservation Concerns

Not under threat.

 

Locality records in GSMNP.

Acknowledgements

Development of these pages was supported by grants from Discover Life in America and the National Science Foundation (DEB-0516311). .

References

Muona, J. 2001.  A revision of North American Eucnemidae. Acta Zoologica Fennica 212: 1-106.

 

Posted 5 Feb. 2007, A. K. Tishechkin, Louisiana State Arthropod Museum.

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