Species: Hygrotus inaequalis
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Arkavatnet | Rogaland, Norway | 1 | 1 | 0 | 1991-05-30 | |
| Frøylandsvatnet | Rogaland, Norway | 1 | 1 | 0 | 1992-09-16 | |
| Jåbekkvannet | Agder, Norway | 1 | 1 | 0 | 1991-06-11 | |
| Kjemsjøen | Innlandet, Norway | 1 | 1 | 0 | 1991-06-10 | |
| Lianvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1992-09-07 | |
| Maltjern | Akershus, Norway | 1 | 1 | 0 | 1989-09-26 | |
| Myklebustvannet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1991-06-03 | |
| Opsangervatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-25 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Tornesvatnet | Rogaland, Norway | 1 | 1 | 0 | 1991-05-30 | |
| Tveitavatnet | Vestland, Norway | 2 | 1 | 0 | 1992-10-01 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1992-06-04 | |
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