''Optioservus browni'' is a species in the family Elmidae ("riffle beetles"), in the suborder

Polyphaga Polyphaga is the largest and most diverse suborder of beetles. It comprises 144 families in 16 superfamilies, and displays an enormous variety of specialization and adaptation, with over 350,000 described species, or approximately 90% of the b ...

("water, rove, scarab, long-horned, leaf and snout beetles"). The species is known generally as the "Brown's optioservus riffle beetle". It is found in North America.

References

* Arnett, R. H. Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). (21 June 2002). ''American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea''. CRC Press LLC, Boca Raton, Florida . * Arnett, Ross H. (2000). ''American Insects: A Handbook of the Insects of America North of Mexico''. CRC Press. * Brown, Harley P. (1983). "A catalog of the Coleoptera of America North of Mexico, Family: Elmidae". ''United States Department of Agriculture, Agriculture Handbook, no. 529-50'', x + 23 + i. * Poole, Robert W., and Patricia Gentili, eds. (1996). "Coleoptera". ''Nomina Insecta Nearctica: A Check List of the Insects of North America, vol. 1: Coleoptera, Strepsiptera'', 41-820. * Richard E. White. (1983). ''Peterson Field Guides: Beetles''. Houghton Mifflin Company. * White, D. S. (1978). "A revision of the Nearctic Optioservus (Coleoptera: Elmidae), with descriptions of new species". ''Systematic Entomology, vol. 3, no. 1'', 59–74. Elmidae {{Elateriformia-stub

References

Further reading