Species: Pleurotaenium trabecula
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Arkavatnet | Rogaland, Norway | 3 | 1 | 0 | 1990-09-25 | |
| Svartåstjern | Buskerud, Norway | 1 | 1 | 0 | 1993-06-03 | |
| Årstadtjødne | Rogaland, Norway | 1 | 1 | 0 | 1993-09-20 |
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