Hydroporus erythrocephalus
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Osterøy vidaregåande skule | Vestland, Norway | 3 | 1 | 0 | 1992-09-18 |
| Strinda videregående skole | Trøndelag, Norway | 2 | 1 | 0 | 1992-09-11 |
| Halden videregående skole Avdeling Christian August/Avdeling Christian August | Østfold, Norway | 2 | 1 | 0 | 1990-10-23 |
| Molde videregående skole | Møre og Romsdal, Norway | 1 | 1 | 0 | 1992-06-05 |
| Bjørkelangen videregående skole | Akershus, Norway | 1 | 1 | 0 | 1991-06-12 |
| Trondheim katedralskole | Trøndelag, Norway | 1 | 1 | 0 | 1992-09-07 |
| Ulstein vidaregåande skule | Møre og Romsdal, Norway | 1 | 1 | 0 | 1991-10-23 |
| Lillehammer videregående skole | Innlandet, Norway | 1 | 1 | 0 | 1989-08-22 |
| Ringerike gymnas | Buskerud, Norway | 1 | 1 | 0 | 1989-09-13 |
| Bryne vidaregåande skule | Rogaland, Norway | 1 | 1 | 0 | 1990-09-28 |