Hydroporus obscurus
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Dytiscidae
- genus: Hydroporus
- species: Hydroporus obscurus
- Austria
Ballyshannon
Ulster
Ireland
Addlestone- Ambleside
- Bardon Mill
- Bordon
- Botesdale
- Bovey Tracey
- Bowdon
- Brading
- Bramhope
- Brockenhurst
- Bugle
- Chertsey
- Church Stretton
- Compton Martin
- Congresbury
- Copmanthorpe
- Cuddington
- Dersingham
- Doddington
- Dukinfield
- East Harptree
- East Molesey
- Esher
- Farnham
- Fleet
- Gainsborough
- Golborne
- Great Bookham
- Hale
- Haughton Green
- Hinchley Wood
- Hyde
- Keswick
- Kingsley
- Kirkby Stephen
- Lytchett Matravers
- Newton-le-Willows
- Normandy
- Oakmere
- Pool
- Pulborough
- Ripley
- Saint Dennis
- Sandown
- South Bank
- Spixworth
- Stalham
- Stourport-on-Severn
- Strensall
- Sunningdale
- Sway
- Thames Ditton
- Thornton
- Three Legged Cross
- Woking
- Wool
- Yatton
England- Randalstown
Northern Ireland
United Kingdom
Bruck am Ziller
Borlänge