Subgenus: fossarum
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Gjølsjøen | Østfold, Norway | 1 | 1 | 0 | 1996-06-11 | |
| Jarenvannet | Innlandet, Norway | 2 | 1 | 0 | 1996-09-18 | |
| Kverndammen | Telemark, Norway | 2 | 1 | 0 | 1992-10-14 | |
| Nøklevann | Oslo, Norway | 2 | 1 | 0 | 1993-06-10 | |
| Opsangervatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-25 | |
| Sagtjernet | Innlandet, Norway | 4 | 1 | 0 | 1993-09-17 | |
| Stavsjø | Innlandet, Norway | 9 | 1 | 0 | 1993-06-07 | |
| Stordammen | Akershus, Norway | 1 | 1 | 0 | 1989-09-08 | |
| Sætertjern | Akershus, Norway | 1 | 1 | 0 | 1992-09-19 |