Species: Early Thorn (Selenia dentaria)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bakkeløkka | Akershus, Norway | 1 | 1 | 1 | 2016-05-21 | |
| Bandaksjøen | Telemark, Norway | 1 | 1 | 0 | 2009-06-27 | |
| Bekkum, Kvikneskogen | Innlandet, Norway | 49 | 1 | 8 | 2021-05-15 | |
| Bekkumsetra, Øldalen | Innlandet, Norway | 2 | 1 | 0 | 2022-07-31 | |
| Birkeland | Agder, Norway | 2 | 1 | 0 | 2016-05-29 | |
| Bjelland, Tromøy | Agder, Norway | 1 | 1 | 0 | 2014-07-17 | |
| Bjerga. Hylsfjorden | Rogaland, Norway | 1 | 1 | 0 | 2014-06-05 | |
| Blindheim | Vestland, Norway | 10 | 1 | 1 | 2024-05-06 | |
| Brotaneset | Vestland, Norway | 1 | 1 | 0 | 2013-05-25 | |
| Buerhytta,Ørsjøen | Østfold, Norway | 1 | 1 | 1 | 2015-04-30 | |
| Dale | Rogaland, Norway | 1 | 1 | 0 | 2016-05-05 | |
| Dalen, Litleskare | Vestland, Norway | 4 | 1 | 1 | 2015-04-20 | |
| Drangedal | Telemark, Norway | 2 | 1 | 2 | 2008-04-30 | |
| Egenes | Agder, Norway | 18 | 1 | 1 | 2017-05-21 | |
| Eidesand, Vinstra | Innlandet, Norway | 1 | 1 | 0 | 2011-05-22 | |
| Eidsborg | Telemark, Norway | 2 | 1 | 0 | 2017-06-11 | |
| Erdal | Vestland, Norway | 1 | 1 | 0 | 2016-06-02 | |
| Espelandsveien | Rogaland, Norway | 1 | 1 | 0 | 2010-05-28 | |
| Fløyen | Vestland, Norway | 1 | 1 | 0 | 1996-05-01 | |
| Gjennestadvannet | Vestfold, Norway | 1 | 1 | 0 | 2023-05-14 | |
| Grindvoll i Lunner | Akershus, Norway | 1 | 1 | 0 | 2011-04-18 | |
| Grønnlien | Vestland, Norway | 41 | 1 | 3 | 2013-06-08 | |
| Haltdalen | Trøndelag, Norway | 16 | 1 | 4 | 2017-06-09 | |
| Hasselgården, Jomfruland | Telemark, Norway | 7 | 1 | 3 | 2014-07-20 | |
| Herdla | Vestland, Norway | 1 | 1 | 0 | 2011-04-29 | |
| Hesthaugen | Vestland, Norway | 2 | 1 | 2 | 2016-05-20 | |
| Hestskobakken, Vinstra | Innlandet, Norway | 1 | 1 | 1 | 2009-05-14 | |
| Hetland | Rogaland, Norway | 4 | 1 | 1 | 2016-05-24 | |
| Hosanger | Vestland, Norway | 1 | 1 | 0 | 2019-05-19 | |
| Hyttetomta, Svanes | Rogaland, Norway | 7 | 1 | 1 | 2012-04-30 | |
| Hølland | Rogaland, Norway | 3 | 1 | 1 | 2014-05-20 | |
| Hårlandsvatnet | Vestland, Norway | 1 | 1 | 0 | 2016-05-11 | |
| Håtong | Rogaland, Norway | 1 | 1 | 1 | 2014-05-19 | |
| Indre Boge | Vestland, Norway | 2 | 1 | 2 | 2021-05-30 | |
| Jøriveien 19 | Møre og Romsdal, Norway | 12 | 1 | 1 | 2018-06-02 | |
| Klungsetfjæra | Nordland, Norway | 1 | 1 | 1 | 2013-06-04 | |
| Kløvdalen, Kvikne | Innlandet, Norway | 19 | 1 | 1 | 2012-06-24 | |
| Knappen | Vestland, Norway | 3 | 1 | 2 | 2013-05-19 | |
| Knarrevik | Vestland, Norway | 1 | 1 | 3 | 2014-06-07 | |
| Kvidavigjå | Rogaland, Norway | 1 | 1 | 0 | 1995-05-20 | |
| Kviknehøgda, Kvikne | Innlandet, Norway | 1 | 1 | 0 | 2009-05-19 | |
| Langeli | Rogaland, Norway | 1 | 1 | 0 | 2009-05-03 | |
| Leknes, Skånevik | Vestland, Norway | 5 | 1 | 3 | 2014-05-09 | |
| Lindsetmoen | Trøndelag, Norway | 1 | 1 | 0 | 2023-05-22 | |
| Lindås | Østfold, Norway | 1 | 1 | 1 | 2010-05-22 | |
| Linepollen | Rogaland, Norway | 1 | 1 | 1 | 2014-04-29 | |
| Linnakåsa | Telemark, Norway | 1 | 1 | 0 | 2020-06-30 | |
| Losveien 12, Fyn, Hvasser | Vestfold, Norway | 2 | 1 | 3 | 2013-08-05 | |
| Lund, Øvre Eidfjord | Vestland, Norway | 1 | 1 | 1 | 2016-06-02 | |
| Morland | Vestland, Norway | 17 | 1 | 6 | 2014-05-19 |