Optioservus browni

Optioservus browni is a species in the family Elmidae ("riffle beetles"), in the suborder Polyphaga ("water, rove, scarab, long-horned, leaf and snout beetles").^[1][2] The species is known generally as the "Brown's optioservus riffle beetle".^[3] It is found in North America.^[2]

Optioservus browni
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Elateriformia
Family:	Elmidae
Genus:	Optioservus
Species:	O. browni
Binomial name
Optioservus browni White, 1978