Genus: Notonecta
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Akersvannet | Vestfold, Norway | 3 | 1 | 0 | 1995-09-07 | |
| Apeltunvatnet | Vestland, Norway | 1 | 1 | 0 | 2008-06-18 | |
| Blommenholm | Akershus, Norway | 1 | 1 | 0 | 2007-09-07 | |
| Dam ved Vestbøvarden | Rogaland, Norway | 1 | 1 | 0 | 2009-05-30 | |
| Erlevegen 37 | Agder, Norway | 1 | 1 | 0 | 1990-05-31 | |
| Fløyta | Akershus, Norway | 2 | 2 | 0 | 1992-06-12 | |
| Frøylandsvatnet | Rogaland, Norway | 6 | 2 | 0 | 1993-10-20 | |
| Gjeitholmsjøen | Innlandet, Norway | 1 | 1 | 0 | 2008-10-03 | |
| Gjølsjøen | Østfold, Norway | 1 | 1 | 0 | 1996-06-11 | |
| Gravdalsvatnet | Vestland, Norway | 1 | 1 | 0 | 1990-09-25 | |
| Gærtjørna | Trøndelag, Norway | 1 | 1 | 0 | 2007-07-30 | |
| Hanabergsmarka | Rogaland, Norway | 1 | 1 | 0 | 2010-09-10 | |
| Harestuvannet | Akershus, Norway | 8 | 2 | 0 | 1996-08-30 | |
| Hauskjevatnet | Rogaland, Norway | 2 | 2 | 0 | 1990-05-28 | |
| Hovsdammen | Østfold, Norway | 4 | 2 | 0 | 1997-05-28 | |
| Husavatnet | Vestland, Norway | 4 | 2 | 0 | 1992-09-18 | |
| Håskjoldtjern | Møre og Romsdal, Norway | 4 | 1 | 0 | 1994-09-21 | |
| Isdammen | Innlandet, Norway | 1 | 1 | 0 | 2013-09-17 | |
| Jarenvannet | Innlandet, Norway | 12 | 2 | 0 | 1996-09-18 | |
| Jomfrudammen | Telemark, Norway | 1 | 1 | 0 | 2008-09-30 | |
| Kolbjørnviksjøen | Østfold, Norway | 2 | 1 | 0 | 1993-09-09 | |
| Kolbotnvannet | Akershus, Norway | 2 | 1 | 0 | 1991-06-03 | |
| Korssjøen | Vestfold, Norway | 2 | 1 | 0 | 1997-09-09 | |
| Kristianborgvannet | Vestland, Norway | 1 | 1 | 0 | 1991-06-04 | |
| Kristianborgvannet | Vestland, Norway | 1 | 1 | 0 | 2009-06-19 | |
| Kverndammen | Telemark, Norway | 4 | 1 | 0 | 1992-10-14 | |
| Kyvatnet | Trøndelag, Norway | 1 | 1 | 0 | 2008-10-16 | |
| Langavatnet | Vestland, Norway | 1 | 1 | 0 | 1989-08-31 | |
| Langvannet | Akershus, Norway | 1 | 1 | 0 | 2002-05-23 | |
| Ledengstjern | Østfold, Norway | 2 | 1 | 0 | 1994-09-02 | |
| Liavatnet | Vestland, Norway | 1 | 1 | 0 | 1994-09-14 | |
| Litlevatn | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-09-07 | |
| Litlvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1992-09-10 | |
| Ljøgodttjern | Akershus, Norway | 3 | 2 | 0 | 1993-08-30 | |
| Maltjern | Akershus, Norway | 2 | 2 | 0 | 1992-06-23 | |
| Merkestjørna | Vestland, Norway | 2 | 1 | 0 | 1995-06-01 | |
| Midsjøvannet | Akershus, Norway | 2 | 2 | 0 | 1993-09-19 | |
| Mildevatnet | Vestland, Norway | 1 | 1 | 0 | 2005-06-14 | |
| Mosvatnet | Rogaland, Norway | 4 | 1 | 0 | 1995-09-14 | |
| Myravatnet | Vestland, Norway | 3 | 1 | 0 | 1993-09-06 | |
| Nes Verk rundt | Agder, Norway | 1 | 1 | 0 | 2019-05-01 | |
| Nøklevann | Oslo, Norway | 4 | 2 | 0 | 1993-06-10 | |
| Pytt ved Strand gård | Trøndelag, Norway | 1 | 1 | 0 | 2004-08-14 | |
| Rossevatn | Rogaland, Norway | 4 | 1 | 0 | 1993-09-20 | |
| Rørvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1992-06-18 | |
| Røyvannet | Telemark, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Sagtjernet | Innlandet, Norway | 1 | 1 | 0 | 1990-06-25 | |
| Semsvannet | Akershus, Norway | 2 | 1 | 0 | 1994-05-18 | |
| Skranevatnet | Vestland, Norway | 2 | 1 | 0 | 2013-05-30 | |
| Stavsjø | Innlandet, Norway | 8 | 2 | 0 | 1993-06-07 | |