Porhydrus lineatus
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Dytiscidae
- genus: Porhydrus
- species: Porhydrus lineatus
Burgheim
Bavaria- Dersekow
- Dreschvitz
- Laage
- Wasdow
Mecklenburg-Vorpommern
Germany
Arklow- Kilkenny
- Leixlip
- Loch Garman
Leinster- Newmarket on Fergus
Munster- Ballyshannon
- Clones
Ulster
Ireland
Ramsey
00
Isle Of Man
Bolzano- Montagna - Montan
- Ora - Auer
- Termeno Sulla Strada del Vino
Trentino-Alto Adige
Italy- Luxembourg
Borlänge
Dalarna- Frillesås
Halland- Nybro
Kalmar- Bergshamra
- Brevik
- Djursholm
- Hemmesta
- Skytteholm
- Solna
Stockholm- Karlstad
Värmland- Njurundabommen
Västernorrland- Örebro
Örebro
Sweden
Acle- Arundel
- Ashford
- Axbridge
- Barlborough
- Barnet
- Belsize Park
- Berrington
- Billinghay
- Bishopstone
- Bishopthorpe
- Bleadon
- Bodle Street
- Bottisham
- Brading
- Bradley Cross
- Bridgwater
- Brockenhurst
- Burgess Hill
- Burnham-on-Sea
- Cambridge
- Canterbury
- Catcliffe
- Chapel Saint Leonards
- Chatham
- Cheddar
- Cheshunt
- Chigwell
- Claydon
- Comberton
- Congresbury
- Copmanthorpe
- Cosby
- Cottenham
- Crofton
- Crowthorne
- Darfield
- Deal
- Derby
- Dinnington
- Easton-in-Gordano
- Eaton
- Ellerton
- Elton
- Esher
- Essington
- Exminster
- Fairlight
- Featherstone
- Fulford
- Gainsborough
- Glastonbury
- Gloucester
- Gravesend
- Great Bookham
- Greenford
- Griston
- Guilden Sutton
- Harbury
- Harthill
- Helsby
- Hemingford Grey
- High Barnet
- High Halstow
- Highbridge
- Hinchley Wood
- Histon
- Holtby
- Hoole
- Howden
- Hutton
- Hythe
- Ipswich
- Isleham
- Keyingham
- Killamarsh
- Kirk Sandall
- Kirton
- Ledsham
- Lewes
- Little Amwell
- Little Paxton
- Lofthouse
- Lydd
- Malmesbury
- Manea
- Martham
- Melbourne
- Meopham
- Mickle Trafford
- Moreton
- Murton
- Narborough
- New Romney
- Newburn
- Newhaven
- Newport
- North Petherton
- Northolt
- Orgreave
- Pershore
- Peterborough
- Pevensey
- Prenton
- Pulborough
- Puriton
- Quorndon
- Ringmer
- Robertsbridge
- Royal Wootton Bassett
- Rye
- Saint Albans
- Saint Dennis
- Saint Leonards-on-Sea
- Sandown
- Scalby
- Severn Beach
- Sherborne
- Sheringham
- South Cave
- Southport
- Stainton
- Stalham
- Staveley
- Stone
- Sutton upon Derwent
- Sway
- Tenterden
- The Boldons
- Thornton
- Tilbury
- Treeton
- Wainfleet All Saints
- Wales
- Wallasey
- Walton
- Waterbeach
- Wath upon Dearne
- Waverton
- Wedmore
- Wentworth
- Weston-super-Mare
- Westonzoyland
- Wheathampstead
- Whittlesey
- Willaston
- Woking
- Wylam
- Yatton
England- Comber
- Enniskillen
- Greyabbey
- Hillsborough
- Holywood
- Lisnaskea
- Moira
- Tandragee
Northern Ireland- Dalbeattie
- Dumfries
- Lochmaben
Scotland
United Kingdom
Esch-sur-Alzette