Optioservus browni

Optioservus browni — Elmidae oilasiga mansub qo‘ng‘iz turi. Ushbu tur Shimoliy Amerika hududida uchraydi.
 Manbalar 

 Adabiyotlar 
 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.

Category:Elmidae