Corixidae
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Krussætertjern | Østfold, Norway | 2 | 2 | 0 | 1990-10-23 | |
| Kråkstad | Akershus, Norway | 1 | 1 | 0 | 2013-08-29 | |
| Kvalvik | Rogaland, Norway | 1 | 1 | 1 | 2013-10-04 | |
| Kvassnesstemma | Vestland, Norway | 1 | 1 | 0 | 2001-09-17 | |
| Kvednavatnet | Vestland, Norway | 1 | 1 | 0 | 2013-06-05 | |
| Kvernavatnet | Vestland, Norway | 3 | 1 | 0 | 2010-09-20 | |
| Kverndammen | Telemark, Norway | 7 | 5 | 0 | 1992-10-14 | |
| Kvitblikkvannet | Nordland, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Kyvatnet | Trøndelag, Norway | 4 | 1 | 0 | 2008-10-16 | |
| Laksådalsvatnet | Nordland, Norway | 2 | 1 | 0 | 1991-06-05 | |
| Langavatnet | Vestland, Norway | 2 | 2 | 0 | 1989-08-31 | |
| Langvannet | Akershus, Norway | 7 | 1 | 0 | 2002-05-23 | |
| Langvannet | Akershus, Norway | 1 | 1 | 0 | 2002-05-23 | |
| Langvatnet, Tromsøya | Troms, Norway | 2 | 1 | 0 | 2014-09-02 | |
| Lathusåsen | Akershus, Norway | 1 | 1 | 0 | 2013-09-27 | |
| Lauvtjønna | Trøndelag, Norway | 20 | 9 | 0 | 1995-10-02 | |
| Ledengstjern | Østfold, Norway | 3 | 3 | 0 | 1994-09-02 | |
| Lianvannet | Trøndelag, Norway | 5 | 1 | 0 | 2021-09-03 | |
| Lianvatnet | Trøndelag, Norway | 36 | 7 | 0 | 1997-09-03 | |
| Liavatnet | Vestland, Norway | 4 | 4 | 0 | 1994-09-14 | |
| Lille Haukdalsvatn | Finnmark, Norway | 1 | 1 | 0 | 2006-09-07 | |
| Lille luktvann | Nordland, Norway | 1 | 1 | 0 | 1991-09-25 | |
| Litjvatnet | Trøndelag, Norway | 1 | 1 | 0 | 2004-09-14 | |
| Litlevatn | Møre og Romsdal, Norway | 7 | 3 | 0 | 1997-09-05 | |
| Litlvatnet | Trøndelag, Norway | 15 | 6 | 0 | 1996-09-06 | |
| Ljøgodttjern | Akershus, Norway | 10 | 9 | 0 | 1993-08-30 | |
| Lomma | Akershus, Norway | 2 | 1 | 0 | 2004-09-03 | |
| Lone | Vestland, Norway | 1 | 1 | 0 | 2015-05-18 | |
| Lone | Vestland, Norway | 7 | 1 | 1 | 2015-05-18 | |
| Loneelva | Vestland, Norway | 2 | 1 | 0 | 2005-09-06 | |
| Longvatnet | Rogaland, Norway | 7 | 7 | 0 | 1990-09-28 | |
| Losby besøksgård | Akershus, Norway | 1 | 1 | 0 | 2007-06-26 | |
| Maltjern | Akershus, Norway | 4 | 4 | 0 | 1992-06-23 | |
| Merkestjørna | Vestland, Norway | 3 | 3 | 0 | 1995-06-01 | |
| Midsjøvannet | Akershus, Norway | 1 | 1 | 0 | 1991-09-19 | |
| Mildevatnet | Vestland, Norway | 26 | 1 | 0 | 2015-11-02 | |
| Moensvatnet | Vestland, Norway | 6 | 2 | 0 | 1993-09-29 | |
| Mosvatnet | Rogaland, Norway | 26 | 9 | 0 | 1995-09-14 | |
| Myklebustvannet | Møre og Romsdal, Norway | 7 | 4 | 0 | 1991-06-03 | |
| Myravatnet | Vestland, Norway | 7 | 6 | 0 | 2007-05-03 | |
| Møylandsletta | Vestfold, Norway | 1 | 1 | 0 | 2013-09-20 | |
| Måkskittmyr | Rogaland, Norway | 1 | 1 | 0 | 2013-10-01 | |
| Nitelva | Akershus, Norway | 1 | 1 | 0 | 2013-09-26 | |
| Nitelva ved Smedstusvingen | Akershus, Norway | 4 | 1 | 0 | 2014-06-11 | |
| Nordre Øyeren og Sørumsneset naturreserv | Akershus, Norway | 5 | 1 | 0 | 2001-05-15 | |
| Norheimsskogen og området rundt skolen | Rogaland, Norway | 1 | 1 | 0 | 2013-08-22 | |
| Nydammen | Trøndelag, Norway | 7 | 1 | 0 | 2015-09-18 | |
| Nøklevann | Oslo, Norway | 12 | 6 | 0 | 1993-06-10 | |
| Nøklevatnet | Innlandet, Norway | 6 | 6 | 0 | 1994-06-02 | |
| Odderøya | Agder, Norway | 2 | 1 | 0 | 2007-08-31 |