Xanthidium cristatum
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Meløy videregående skole/Avd Ørnes | Nordland, Norway | 1 | 1 | 0 | 1991-09-04 |
| Sogndal vidaregåande skule | Vestland, Norway | 1 | 1 | 0 | 1991-09-18 |
| Trysil videregående skole | Innlandet, Norway | 1 | 1 | 0 | 1996-09-10 |