Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Stenelmis

elmid species 2 - Stenelmis crenata unk beetle - Stenelmis sexlineata Stenelmis? - Stenelmis Stenelmis Riffle Beetle? - Stenelmis beetle - Stenelmis Stenelmis Riffle beetle – genus Stenelmis? - Stenelmis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Elateriformia)
Superfamily Byrrhoidea
Family Elmidae (Riffle Beetles)
Subfamily Elminae
Tribe Elmini
Genus Stenelmis
Explanation of Names
Stenelmis Dufour 1835
Numbers
34 species in our area(1), plus several possibly undescribed species

Species found in Nevada hot springs:
Stenelmis calida Chandler, 1949
Stenelmis lariversi Schmude, 1999
Stenelmis moapa La Rivers, 1949
Stenelmis occidentalis Schmude & Brown, 1991 (in part)

Not restricted to Nevada hot springs:
Stenelmis antennalis Sanderson, 1938
Stenelmis beameri Sanderson, 1938
Stenelmis bicarinata LeConte, 1852
Stenelmis cheryl Brown, 1987
Stenelmis concinna Sanderson, 1938
Stenelmis convexula Sanderson, 1938
Stenelmis crenata (Say, 1824)
Stenelmis decorata Sanderson, 1938
Stenelmis douglasensis Sanderson, 1938
Stenelmis exigua Sanderson, 1938
Stenelmis exilis Sanderson, 1938
Stenelmis fuscata Blatchley, 1925
Stenelmis gammoni White & Brown, 1976
Stenelmis grossa Sanderson, 1938
Stenelmis hollandi White & Lenat, 2015 [Little River drainage, NC]
Stenelmis humerosa Motschulsky, 1859
Stenelmis hungerfordi Sanderson, 1938
Stenelmis knobeli Sanderson, 1938
Stenelmis lateralis Sanderson, 1938
Stenelmis lignicola Schmude & Brown, 1992
Stenelmis mera Sanderson, 1938
Stenelmis mirablis Sanderson, 1938
Stenelmis morsei White, 1982
Stenelmis musgravei Sanderson, 1938
Stenelmis occidentalis Schmude & Brown, 1991 (in part)
Stenelmis parva Sanderson, 1938
Stenelmis quadrimaculata Horn, 1870
Stenelmis sandersoni Musgrave, 1940
Stenelmis sexlineata Sanderson, 1938
Stenelmis sinuata LeConte, 1852
Stenelmis xylonastis Schmude & Barr, 1992

Species in Schmude (1992) that have not yet been formally published:
Stenelmis undescribed from AL-FL (pg. 93 Schmude)
Stenelmis undescribed from SE USA (pg. 111 Schmude)
Stenelmis undescribed from coastal eastern states (pg. 181 Schmude)
Stenelmis undescribed from Mexico (pg. 178 Schmude)
Identification
See (2) and (3) but beware of subsequent changes in taxonomy/nomenclature, as several common species have had nomenclature changes.

An unpublished thesis by Kurt Schmude has the most recent and up-to-date key to species.
Range
most of NA(1)
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.A monographic revision of the North American species of Stenelmis (Drypoidae: Coleoptera)
Sanderson M.W. 1938. U. Kans. Sci. Bull. 25: 635‒717.
3.Aquatic dryopoid beetles (Coleoptera) of the United States
Brown H.P. 1972. USEPA Water Poll. Control Res. Ser., Vol. 6. ix+82 pp.