Hydroporus longicornis
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Dytiscidae
- genus: Hydroporus
- species: Hydroporus longicornis
Wallern im Burgenland
Burgenland
AustriaBressanone - Brixen
Dobbiaco - Toblach
Sluderno - Schluderns
Trentino-Alto Adige
ItalySölvesborg
Blekinge
Sweden- United Kingdom