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For Insects, Spiders & Their Kin
For the United States & Canada
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Genus Optioservus

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 Optioservus

Species browni - Optioservus browni
Species canus - Optioservus canus
Species castanipennis - Optioservus castanipennis
Species divergens - Optioservus divergens
Species fastiditus - Optioservus fastiditus
Species heteroclitus - Optioservus heteroclitus
Species immunis - Optioservus immunis
Species ovalis - Optioservus ovalis
Species phaeus - Optioservus phaeus
Species quadrimaculatus - Optioservus quadrimaculatus
Species sandersoni - Optioservus sandersoni
Species seriatus - Optioservus seriatus
Species trivittatus - Optioservus trivittatus