Localities: Gullerudtjern: 18.09.1992
| Reporter: | Ringerike gymnas |
| Site: | Gullerudtjern () |
| Date: | 1992-09-18 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Ephemera vulgata |
| Number: | 7 |
| Original: | Ja |
| Species: | Gerris lacustris |
| Number: | 2 |
| Original: | Ja |
| Species: | Gerridae indet. |
| Number: | 1 |
| Original: | Ja |
| Species: | Phryganea grandis |
| Number: | 1 |
| Original: | Ja |