Heptagenia fuscogrisea
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Askim videregående skole | Østfold, Norway | 4 | 1 | 0 | 1996-10-24 |
| Skien videregående skole/Avd Brekkeby | Telemark, Norway | 2 | 1 | 0 | 1993-09-10 |
| Holmestrand videregående skole | Vestfold, Norway | 2 | 1 | 0 | 1995-09-14 |
| Eikeli videregående skole | Akershus, Norway | 1 | 1 | 0 | 1995-06-09 |
| Numedal videregående skole | Buskerud, Norway | 1 | 1 | 0 | 1990-09-26 |
| Bjertnes videregående skole | Akershus, Norway | 1 | 1 | 0 | 1994-06-09 |
| Solør videregående skole | Innlandet, Norway | 1 | 1 | 0 | 1989-09-14 |