Graphoderus bilineatus

Graphoderus bilineatus is a species of beetle in family Dytiscidae. The IUCN Red List reports it from Austria, Belgium, Bosnia and Herzegovina, Croatia, the Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Norway, Poland, Russia, Serbia and Montenegro, Slovakia, Switzerland, Turkmenistan, Ukraine, and the United Kingdom.