Apotomis betuletana (Birch Marble)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|
| Frode Falkenberg | Vestland, Norway | 69 | 1 | 3 | 2020-08-19 |
| Even Mjaaland | Rogaland, Norway | 50 | 1 | 4 | 2017-07-23 |
| Kjell Mjølsnes | Rogaland, Norway | 50 | 1 | 1 | 2017-07-26 |
| Olav Krogsæter | Vestland, Norway | 44 | 1 | 4 | 2015-09-03 |
| Alf Tore Mjøs | Rogaland, Norway | 33 | 1 | 8 | 2023-08-13 |
| Ivar Stormo | Østfold, Norway | 24 | 1 | 0 | 2019-08-11 |
| Leiv Tommas Haugen | Rogaland, Norway | 23 | 1 | 0 | 2023-08-21 |
| Turid og Jarle Bakken | Møre og Romsdal, Norway | 13 | 1 | 6 | 2021-08-07 |
| John Skartveit | Vestland, Norway | 11 | 1 | 1 | 2023-08-22 |
| Geirr O Pedersen | Akershus, Norway | 8 | 1 | 0 | 2011-08-10 |
| John Stenersen | Nordland, Norway | 7 | 1 | 4 | 2017-08-07 |
| John Grønning | Rogaland, Norway | 5 | 1 | 1 | 2016-08-04 |
| Lars Erik Johannessen | Østfold, Norway | 5 | 1 | 4 | 2015-08-23 |
| Nils Rogn | Innlandet, Norway | 4 | 1 | 4 | 2020-08-02 |
| Ola Moen | Vestland, Norway | 3 | 1 | 0 | 2015-08-25 |
| Svein Sellevold Bekkum | Nordland, Norway | 3 | 1 | 2 | 2011-08-02 |
| Michael Fredriksen | Vestland, Norway | 3 | 1 | 3 | 2010-08-11 |
| Christer Kamsvåg | Møre og Romsdal, Norway | 2 | 1 | 0 | 2015-08-11 |
| Øyvind Stickler | Vestfold, Norway | 2 | 1 | 1 | 2021-07-17 |
| Sissel og Nigel Goodgame | Vestland, Norway | 1 | 1 | 2 | 2013-07-28 |
| Eivind Nielsen | Rogaland, Norway | 1 | 1 | 0 | 2013-08-17 |
| Håvar Hveding | Rogaland, Norway | 1 | 1 | 0 | 2014-08-14 |
| Eli Gates | Akershus, Norway | 1 | 1 | 1 | 2016-07-20 |
| Egil Frantzen | Vestland, Norway | 1 | 1 | 1 | 2010-07-20 |
| Kjell Tore Vogsland | Telemark, Norway | 1 | 1 | 1 | 2007-08-02 |