Polyarthra sp.
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Eikedokktjernet | Buskerud, Norway | 1 | 1 | 0 | 1989-10-29 | |
| Gåstjønna | Nordland, Norway | 1 | 1 | 0 | 1989-09-12 | |
| Haukvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-22 | |
| Husavatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-28 | |
| Kjemsjøen | Innlandet, Norway | 2 | 1 | 0 | 1994-06-13 | |
| Korssjøen | Vestfold, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Krussætertjern | Østfold, Norway | 1 | 1 | 0 | 1989-09-15 | |
| Ledengstjern | Østfold, Norway | 1 | 1 | 0 | 1994-05-27 | |
| Liavatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-19 | |
| Litlvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1992-09-20 | |
| Midsjøvannet | Akershus, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Nøklevann | Oslo, Norway | 1 | 1 | 0 | 1989-09-15 | |
| Reiarsvatnet | Rogaland, Norway | 1 | 1 | 0 | 1991-09-16 | |
| Rullestadtjern | Akershus, Norway | 1 | 1 | 0 | 1991-09-19 | |
| Rørvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-06-21 | |
| Sagtjernet | Innlandet, Norway | 1 | 1 | 0 | 1989-09-20 | |
| Storavatnet | Vestland, Norway | 1 | 1 | 0 | 1990-06-14 | |
| Sætertjern | Akershus, Norway | 2 | 1 | 0 | 1991-09-18 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-01 | |
| Årungen | Akershus, Norway | 1 | 1 | 0 | 1996-09-16 | |
| Åstveitvannet | Vestland, Norway | 1 | 1 | 0 | 1989-09-07 |