Hydroporus longulus
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Dytiscidae
- genus: Hydroporus
- species: Hydroporus longulus
- Austria
Wallendorf
Rheinland-Pfalz
Germany
Port Erin
00
Isle Of Man
Bressanone - Brixen- Dobbiaco - Toblach
Trentino-Alto Adige
Italy
Beaufort
02
Luxembourg
Ashtead- Basingstoke
- Broadfield
- Caton
- Cawthorne
- Chiddingfold
- Church Stretton
- Combe Martin
- Copmanthorpe
- Crawley
- Dawlish
- Denholme
- East Molesey
- Egham
- Farnham
- Forest Row
- Gainsborough
- Hale
- Hastings
- Hinchley Wood
- Hindhead
- Holwick
- Ilkley
- Ingleby Greenhow
- Ivybridge
- Landewednack
- Liss
- Mayfield
- New Mills
- Newbiggin
- Pembury
- Penistone
- Quorndon
- Saint Leonards-on-Sea
- Teignmouth
- Tenterden
- Thames Ditton
- Whittingham
- Winterbourne
- Woking
- Wooler
England- Comrie
- Isle of Harris
- Loanhead
- Strathkinness
- Thornhill
Scotland
United Kingdom
Heinfels