Genus: Arthroplea
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Eikedokktjernet | Buskerud, Norway | 1 | 1 | 0 | 1990-06-06 | |
| Hammervatnet | Trøndelag, Norway | 1 | 1 | 0 | 1990-06-11 | |
| Harestuvannet | Akershus, Norway | 1 | 1 | 0 | 1996-06-11 | |
| Kjemsjøen | Innlandet, Norway | 3 | 1 | 0 | 1993-06-08 | |
| Korssjøen | Vestfold, Norway | 1 | 1 | 0 | 1990-05-30 | |
| Lauvtjønna | Trøndelag, Norway | 2 | 1 | 0 | 1993-06-11 | |
| Ledengstjern | Østfold, Norway | 1 | 1 | 0 | 1994-05-27 | |
| Sagtjernet | Innlandet, Norway | 1 | 1 | 0 | 1990-06-25 | |
| Stikla | Østfold, Norway | 1 | 1 | 0 | 1994-06-08 |
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