Species: Stor ryggsvømmer (Notonecta glauca)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Ulfsbakktjønn | Vestfold, Norway | 3 | 1 | 0 | 1997-09-16 | |
| Varavannet | Vestland, Norway | 1 | 1 | 0 | 2013-09-03 | |
| Øksnevadtjørna | Rogaland, Norway | 1 | 1 | 0 | 1993-10-07 | |
| Øvre Mjølsnes | Rogaland, Norway | 1 | 1 | 1 | 2009-05-30 | |
| Årstadtjødne | Rogaland, Norway | 2 | 1 | 0 | 1996-10-11 | |
| Årungen | Akershus, Norway | 8 | 1 | 0 | 1997-09-12 | |
| Åstveitvannet | Vestland, Norway | 3 | 1 | 0 | 1991-09-27 |
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