title: Diagnostic characters of larvae of European species of Graphoderus Dejean (Coleoptera, Dytiscidae) with an identification key and some notes on their biology.
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000254:growth & development*; D007814:Larva / Q000145:classification / Q000254:growth & development; D008675:Metamorphosis, Biological