Localities: Gullerudtjern: 31.05.1990
| Reporter: | Ringerike gymnas |
| Site: | Gullerudtjern () |
| Date: | 1990-05-31 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Ephemera vulgata |
| Number: | 5 |
| Original: | Ja |
| Species: | Gerris lacustris |
| Number: | 2 |
| Original: | Ja |
| Species: | Lymnaea stagnalis |
| Number: | 2 |
| Original: | Ja |
| Species: | Lymnaea peregra |
| Number: | 3 |
| Original: | Ja |
| Species: | Cloeon dipterum |
| Number: | 1 |
| Original: | Ja |
| Species: | Coenagrion pulchellum |
| Number: | 1 |
| Original: | Ja |
| Species: | Gerris rufoscutellatus |
| Number: | 1 |
| Original: | Ja |
| Species: | Sialis lutaria |
| Number: | 1 |
| Original: | Ja |
| Species: | Somatochlora metallica |
| Number: | 1 |
| Original: | Ja |