Family: Vannkjærer (Hydrophilidae)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Arkavatnet | Rogaland, Norway | 2 | 2 | 0 | 1992-09-22 | |
| Dælivannet | Akershus, Norway | 2 | 2 | 0 | 1992-09-10 | |
| Engsbekken | Østfold, Norway | 1 | 1 | 0 | 2002-05-30 | |
| Fæbydammen | Trøndelag, Norway | 1 | 1 | 0 | 1997-06-05 | |
| Gjellumvannet | Akershus, Norway | 1 | 1 | 0 | 2014-10-13 | |
| Heggedal | Akershus, Norway | 1 | 1 | 0 | 2014-10-13 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1992-09-16 | |
| Hostadvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Hovsdammen | Østfold, Norway | 1 | 1 | 0 | 1997-05-28 | |
| Kjemsjøen | Innlandet, Norway | 1 | 1 | 0 | 1991-06-10 | |
| Kolbjørnviksjøen | Østfold, Norway | 8 | 2 | 0 | 1992-09-02 | |
| Koltjønna | Trøndelag, Norway | 1 | 1 | 0 | 1991-05-28 | |
| Krussætertjern | Østfold, Norway | 1 | 1 | 0 | 1990-06-01 | |
| Kvitblikkvannet | Nordland, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Lauvtjønna | Trøndelag, Norway | 1 | 1 | 0 | 1991-09-06 | |
| Lianvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1991-09-01 | |
| Nordre Øyeren og Sørumsneset naturreserv | Akershus, Norway | 2 | 1 | 0 | 2000-06-15 | |
| Odderøya | Agder, Norway | 1 | 1 | 0 | 2002-09-04 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1990-09-25 | |
| Sagtjernet | Innlandet, Norway | 1 | 1 | 0 | 1990-06-25 | |
| Skithegga | Akershus, Norway | 6 | 1 | 0 | 2014-10-13 | |
| Skulbruvatn | Nordland, Norway | 2 | 2 | 0 | 1997-09-12 | |
| Spildervatnet | Nordland, Norway | 1 | 1 | 0 | 1990-06-07 | |
| Stavsjø | Innlandet, Norway | 2 | 2 | 0 | 1991-10-14 | |
| Sundkilen | Telemark, Norway | 2 | 1 | 0 | 1990-06-01 | |
| Søndre Aas gård, Holmlia | Oslo, Norway | 1 | 1 | 0 | 2013-06-17 | |
| Tussvatnet | Nordland, Norway | 2 | 2 | 0 | 1990-06-07 | |
| Vollsvannet | Trøndelag, Norway | 1 | 1 | 0 | 2014-05-19 | |
| Øksnevadtjørna | Rogaland, Norway | 1 | 1 | 0 | 1991-09-15 | |
| Østernvannet | Akershus, Norway | 1 | 1 | 0 | 1990-08-28 | |
| Øymarksjøen | Østfold, Norway | 1 | 1 | 0 | 1997-05-29 | |
| Ålesundsaksla | Møre og Romsdal, Norway | 1 | 1 | 0 | 1999-09-28 | |
| Ålvatnet | Trøndelag, Norway | 5 | 1 | 0 | 2013-09-04 | |
| Årungen | Akershus, Norway | 4 | 3 | 0 | 1997-09-12 |