Species: Innsjøduskgjelledøgnflue (Ephemera vulgata)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Burudvann | Akershus, Norway | 2 | 1 | 0 | 1993-09-14 | |
| Gullerudtjern | Buskerud, Norway | 5 | 1 | 0 | 1992-09-18 | |
| Gåstjønna | Nordland, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Harestuvannet | Akershus, Norway | 1 | 1 | 0 | 1991-09-13 | |
| Haukvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-22 | |
| Jaren skole | Innlandet, Norway | 1 | 1 | 0 | 2013-09-27 | |
| Jarenvannet | Innlandet, Norway | 1 | 1 | 0 | 2013-09-27 | |
| Kolbjørnviksjøen | Østfold, Norway | 6 | 1 | 0 | 1993-09-09 | |
| Korssjøen | Vestfold, Norway | 6 | 1 | 0 | 1996-09-09 | |
| Laupen | Innlandet, Norway | 1 | 1 | 0 | 1991-10-01 | |
| Lauvtjønna | Trøndelag, Norway | 4 | 1 | 0 | 1993-09-06 | |
| Nøklevann | Oslo, Norway | 3 | 1 | 0 | 1993-06-10 | |
| Sagtjernet | Innlandet, Norway | 3 | 1 | 0 | 1993-09-17 | |
| Semsvannet | Akershus, Norway | 2 | 1 | 0 | 1994-05-18 | |
| Stikla | Østfold, Norway | 1 | 1 | 0 | 1994-06-08 | |
| Sverigetjern | Akershus, Norway | 1 | 1 | 1 | 2019-06-05 | |