Localities: Ørsjøen: 02.09.1993
| Reporter: | Trysil videregående skole |
| Site: | Ørsjøen () |
| Date: | 1993-09-02 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Pea clam (Pisidium sp.) |
| Number: | 2 |
| Original: | Ja |
| Species: | Limnephilus sp. |
| Number: | 2 |
| Original: | Ja |
| Species: | Somatochlora metallica |
| Number: | 4 |
| Original: | Ja |