Dytiscus latissimus Linnaeus, 1758 and Graphoderus bilineatus (Degeer, 1774) in Belgium: a detailed account of the known records (Coleoptera: Dytiscidae)

Dytiscus latissimus Linnaeus, 1758 and Graphoderus bilineatus (Degeer, 1774) are listed as appendix II and IV species of the EU Habitat Directive and the Natura 2000 network. The last confirmed records of D. latissimus and G. bilineatus are from respectively 1921 and 1948 and both species are now considered to be extinct in Belgium. Despite the attention that these two declining species get in Europe, there has never been an account of the known Belgian records and these species have no official status in Belgium. For this article, all the known Belgian records from collections, literature and fiches are compiled and mapped.