Acerina
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Kolbjørnviksjøen | Østfold, Norway | 1 | 1 | 0 | 1990-08-29 | |
| Ledengstjern | Østfold, Norway | 1 | 1 | 0 | 1994-05-27 | |
| Mildevatnet | Vestland, Norway | 1 | 1 | 0 | 2005-10-24 | |
| Mjøsa | Innlandet, Norway | 2 | 1 | 0 | 2000-10-09 | |
| Sagtjernet | Innlandet, Norway | 1 | 1 | 0 | 1989-09-20 | |
| Skinnarvatnet | Agder, Norway | 1 | 1 | 0 | 2001-07-14 | |
| Svartelva | Innlandet, Norway | 1 | 1 | 0 | 2004-10-14 | |
| vollgravene gamlebyen | Østfold, Norway | 1 | 1 | 0 | 2014-01-07 |