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Tribe Elmini

another Riffle beetle - Stenelmis bicarinata Atractelmis wawona Oulimnius latiusculus Oulimnius nitidulus Maybe Stenelmis? - Stenelmis Beetle - Stenelmis quadrimaculatus or seriatus?-2 - Optioservus - male Elmidae - Stenelmis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Elateriformia)
Superfamily Byrrhoidea (Pill, Water and Toe-winged Beetles)
Family Elmidae (Riffle Beetles)
Subfamily Elminae
Tribe Elmini
Numbers
the largest tribe in NA, with >90 spp. in 22 genera in our area(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.