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Coleoptera of Great Smoky Mountains National Park Species Pages

Family Eucnemidae

            Tribe Macraulacini

 Fornax bicolor (Melsheimer)

Description and Taxonomy

Length 7.5-12mm. The genus may be diagnosed by the following combination of characters: deep lateral antennal grooves, epipleuron with groove near the base and weakly serrate antennae.  In the Nearctic Region, the genus is represented by two species, one widespread in the east, another recently described from Florida (Muona 2000). Only one species is found in GSMNP.

Life History

This is a rare eucnemid species in GSMNP. A few specimens were collected by Malaise traps at Brushy Mountain and Twin Creeks ATBI plots from early August to late September at 625 and 1500 m elevations.  The life history of the species is essentially unknown (Muona 2000).


Rare, but widespread eastern North American eucnemid, known from Illinois and Quebec to Louisiana and Florida (Muona 2000).

Conservation Concerns

This species is suspected to be experiencing a population decline, beginning several decades ago. Most collection records are from the early 20th century (Muona 2000).


Locality records in GSMNP.


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


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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