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Coleoptera of Great Smoky Mountains National Park Species Pages

Family Histeridae

            Tribe Platysomatini

 Eblisia carolina (Paykull)

Description and Taxonomy

Length 3.0-3.9 mm. The genus belongs to the tribe Platysomatini, which is characterized by the presence of a wide prosternal lobe, free labrum, antennal cavities situated under anterior angles of pronotum, dentate protibiae with sinuate protarsal furrow, antennal club with V-shaped annuli, deflexed head and flattened or cylindrical body (Kryzhanovskij & Reichardt 1976, Kovarik & Caterino 2000). The generic level taxonomy of the tribe has been recently in the state of flux (Mazur 1984, 1998, 1999). Here, I use the most recent concepts (Mazur 1998, 1999; Bousquet & Laplante 1999, 2006) in treating this long time member of the genus Platysoma as Eblisia. The genus  may be distinguishde from Platysoma s. str. (with flat body) by the more convex and rectangular body shape, marginal pronotal stria interrupted along anterior margin, presence of three or more striae on the inflexed part of the elytron, single lateral metasternal stria and ridge-like prosternal keel. The only species in the GSMNP is characteristic in having a dark reddish brown color and three complete dorsal striae (1st to 3rd).

Life History

The species is found under the bark of dead trees, both coniferous and deciduous. A record from a polypore also exists (Bousquet & Lapalante 2006).   In  GSMNP, the species was collected at several locations at 455-750 m elevation.

Distribution

 Widespread in N America, from South Dakota, Nebraska and Quebec to Texas and Florida (Bousquet & Laplante 2006).

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

Bousquet, Y. and S. Laplante. 1999.  Les coloptres histrids du Qubec. Fabreries. Suppl. 8: 1-190.

Bousquet, Y. and S. Laplante. 2006.  Coleoptera Histeridae. The insects and arachnids of Canada. Part 24. NRC Research press, Ottawa. 485 pp.

Kovarik, P.W. and M. S. Caterino.  2000. Histeridae. Pp. 212-227 in: Arnett, R. H. and M. C. Thomas (eds.) American beetles. Vol. 1. CRC Press, Boca Raton  - London - New York - Washington.

Kryzhanovskij, O. L. and A. N. Reichardt. 1976. Histeroidea. fauna of the USSR. Vol. V (4). Nauka: Moscow - Leneingrad. 433 pp.

Mazur, S. 1984. A World catalogue of Histeridae. Polskie Pismo Entomologiczne 54: 1-376.

Mazur, S. 1997. A World catalogue of the Histeridae (Coleoptera: Histeroidea). Biologica Silesiae, Wroclaw. 373 pp.

Mazur, S. 1999. preliminary srudies upon the Platysoma complex (Col. Histeridae). Annals of Warsaw Agricultural university - SGGW. Forestry & Wood Technology 49: 3-29.

 

 Posted 13 August 2007, A. K. Tishechkin, Louisiana State Arthropod Museum.

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