Helophilus
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Markaplassen skole | Trøndelag, Norway | 2 | 1 | 0 | 2018-05-23 |
| SABIMA | Oslo, Norway | 1 | 1 | 1 | 2007-09-05 |
| Frode Falkenberg | Vestland, Norway | 1 | 1 | 0 | 2014-07-22 |
| Per Torgersen | Akershus, Norway | 1 | 1 | 0 | 2024-05-20 |