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Coleoptera of Great Smoky Mountains National Park Species Pages

Family Eucnemidae

            Tribe Melasini

 Entomophthalmus rufiolus (LeConte)

Description and Taxonomy

Length 2.5-4.0mm. In addition to tribal characters (prominent lateral pronotal ridges, notosternal antennal grooves, deep pits near procoxae) the genus may be diagnosed by simple elytral apices, uniform pale brown color and short 2nd and 3rd antennomeres.  In the Nearctic Region, the genus is monotypic (Muona 2000).

Life History

Specimens from GSMNP were collected using Malaise traps and by beating an unspecified deciduous tree. They were found from early June to late October at 625-890 m elevation.  Although it is quite a common North American species, only one host genus, Carya, is known (Muona 2000).


Widespread and common in eastern North American, known from Minnesota and Quebec to Texas and Florida (Muona 2000).

Conservation Concerns

Not under threat.


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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