Species: Hyphydrus ovatus
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Fløyta | Akershus, Norway | 1 | 1 | 0 | 1989-09-22 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1991-10-23 | |
| Korssjøen | Vestfold, Norway | 2 | 1 | 0 | 1997-09-09 | |
| Krussætertjern | Østfold, Norway | 1 | 1 | 0 | 1990-10-23 | |
| Kverndammen | Telemark, Norway | 4 | 1 | 0 | 1992-10-14 | |
| Maltjern | Akershus, Norway | 2 | 1 | 0 | 1992-06-23 | |
| Vikerauntjønna | Trøndelag, Norway | 3 | 1 | 0 | 1992-09-11 | |
| Årungen | Akershus, Norway | 4 | 1 | 0 | 1997-09-12 |