Genus: Sialis
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Sagtjernet | Innlandet, Norway | 3 | 2 | 0 | 1992-09-21 | |
| Seljebøvatnet | Møre og Romsdal, Norway | 3 | 2 | 0 | 1992-06-11 | |
| Semsvannet | Akershus, Norway | 2 | 1 | 0 | 1989-09-21 | |
| Spildervatnet | Nordland, Norway | 3 | 1 | 0 | 1993-06-10 | |
| Steglevannet | Buskerud, Norway | 1 | 1 | 0 | 1989-10-06 | |
| Stokkavatnet | Nordland, Norway | 1 | 1 | 0 | 1990-09-18 | |
| Storavatnet | Vestland, Norway | 1 | 1 | 0 | 1993-09-02 | |
| Store Bjørnevatnet | Agder, Norway | 4 | 2 | 0 | 1989-08-30 | |
| Svanevatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-04 | |
| Svartåstjern | Buskerud, Norway | 1 | 1 | 0 | 1991-09-04 | |
| Sætertjern | Akershus, Norway | 1 | 1 | 0 | 1990-09-12 | |
| Trytetjønnet | Buskerud, Norway | 1 | 1 | 0 | 1989-09-08 | |
| Tveitavatnet | Vestland, Norway | 4 | 1 | 0 | 1992-10-01 | |
| Tveitevannet | Vestland, Norway | 1 | 1 | 0 | 1990-08-28 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1992-06-04 | |
| Vikerauntjønna | Trøndelag, Norway | 1 | 1 | 0 | 1993-09-15 | |
| Vålåsjøen | Innlandet, Norway | 3 | 1 | 0 | 1990-09-07 | |
| Årungen | Akershus, Norway | 5 | 1 | 0 | 1993-09-22 | |
| Åstveitvannet | Vestland, Norway | 2 | 1 | 0 | 1990-09-18 | |
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