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Coleoptera of Great Smoky Mountains National Park Species Pages

Family Eucnemidae

            Tribe Melasini

 Sarpedon scabrosus Bonvouloir

Description and Taxonomy

Length 5-7mm. In addition to tribal characters (prominent lateral pronotal ridges, notosternal antennal grooves, deep pits near procoxae) the genus may be diagnosed by biserrate (in females) or bipectinate (in males) antennae.  The genus is monotypic in the Nearctic Region (Muona 2000).

Life History

This is the rarest eucnemid in the GSMNP. A few specimens were collected with Malaise traps at Twin Creeks ATBI plot. They were found from  late June to late August at 625 m elevation.  Although it's widespread North American species, the only one host genus is known, i.e. Populus ( Muona 2000).


Widespread in North American, known from British Columbia and Ontario to California, Texas and Virginia. Most of known records  involve single specimens (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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