Graphoderus occidentalis

Graphoderus occidentalis is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.^[1][2][3][4]

Graphoderus occidentalis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Adephaga
Family:	Dytiscidae
Genus:	Graphoderus
Species:	G. occidentalis
Binomial name
Graphoderus occidentalis Horn, 1883