Pierinae
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Tjensvoll | Rogaland, Norway | 8 | 3 | 0 | 2011-06-05 | |
| Tjønnstugu | Trøndelag, Norway | 2 | 2 | 0 | 2012-06-09 | |
| Tjørn | Rogaland, Norway | 1 | 1 | 0 | 2008-07-22 | |
| Tofteskogen naturreservat | Akershus, Norway | 1 | 1 | 1 | 2011-05-10 | |
| Tokagjelet | Vestland, Norway | 1 | 1 | 0 | 2008-07-03 | |
| Tomset | Trøndelag, Norway | 10 | 2 | 1 | 2012-07-04 | |
| Tomsetmyra | Trøndelag, Norway | 3 | 1 | 0 | 2012-06-24 | |
| Tomtabakken 3 | Akershus, Norway | 19 | 4 | 9 | 2022-08-19 | |
| Tonsenhagen | Oslo, Norway | 1 | 1 | 2 | 2020-08-09 | |
| Torheim | Vestland, Norway | 2 | 2 | 0 | 2020-06-03 | |
| Torp-Nord | Vestfold, Norway | 1 | 1 | 0 | 2015-08-16 | |
| Torp-Øst | Vestfold, Norway | 2 | 2 | 0 | 2014-07-23 | |
| Torpbukta | Østfold, Norway | 1 | 1 | 0 | 2019-05-14 | |
| Torpo | Buskerud, Norway | 6 | 4 | 1 | 2010-06-14 | |
| Torsteinsvik | Vestland, Norway | 1 | 1 | 1 | 2007-07-06 | |
| Treje løvås vei/Dr. Erichsens vei | Agder, Norway | 1 | 1 | 1 | 2010-06-23 | |
| Trollsåsbukta | Vestfold, Norway | 1 | 1 | 0 | 2017-07-20 | |
| Tromøy kirke | Agder, Norway | 2 | 2 | 0 | 2014-07-14 | |
| Trones | Rogaland, Norway | 1 | 1 | 0 | 2020-08-13 | |
| Tronsvangen | Innlandet, Norway | 1 | 1 | 0 | 2022-05-21 | |
| Tronsvanglia | Innlandet, Norway | 2 | 2 | 1 | 2022-08-19 | |
| Troselia | Agder, Norway | 2 | 2 | 0 | 2022-05-07 | |
| Tråstad | Innlandet, Norway | 3 | 2 | 3 | 2016-06-12 | |
| Turøy | Vestland, Norway | 1 | 1 | 0 | 2007-07-06 | |
| Turøy | Vestland, Norway | 1 | 1 | 0 | 2012-05-25 | |
| Tveitan | Vestfold, Norway | 1 | 1 | 0 | 2018-05-15 | |
| Tystenodden | Trøndelag, Norway | 2 | 2 | 0 | 2010-07-04 | |
| Tørvikbygd | Vestland, Norway | 1 | 1 | 0 | 2017-05-22 | |
| Tøyen | Oslo, Norway | 5 | 3 | 0 | 2018-07-28 | |
| Tårnbrygga, Jomfruland | Telemark, Norway | 4 | 2 | 0 | 2013-07-09 | |
| Ulefoss | Telemark, Norway | 1 | 1 | 1 | 2012-07-17 | |
| Ullernchausseen 70 | Oslo, Norway | 1 | 1 | 0 | 2021-07-15 | |
| Ullevål | Oslo, Norway | 36 | 5 | 5 | 2019-04-26 | |
| Ulven | Oslo, Norway | 1 | 1 | 0 | 2020-05-03 | |
| Ulvenvatnet | Vestland, Norway | 1 | 1 | 0 | 2011-06-16 | |
| Ulvesetvatnet | Vestland, Norway | 1 | 1 | 0 | 2009-06-21 | |
| Urnes | Vestland, Norway | 4 | 2 | 1 | 2010-07-23 | |
| Utsira | Rogaland, Norway | 1 | 1 | 0 | 2011-05-24 | |
| Utsira | Rogaland, Norway | 2 | 2 | 0 | 2011-05-24 | |
| Vaksvik | Møre og Romsdal, Norway | 11 | 2 | 0 | 2024-04-16 | |
| Valldalen | Vestland, Norway | 1 | 1 | 0 | 1985-07-15 | |
| Valle | Agder, Norway | 1 | 1 | 0 | 2011-06-04 | |
| Vanakleivdalen | Akershus, Norway | 8 | 2 | 3 | 2024-05-22 | |
| Vansjø | Østfold, Norway | 1 | 1 | 0 | 2013-07-06 | |
| Varane, Erdal | Vestland, Norway | 3 | 1 | 1 | 2014-06-09 | |
| Varangerbotn | Finnmark, Norway | 1 | 1 | 0 | 2008-07-19 | |
| Vassbygdi | Vestland, Norway | 3 | 3 | 1 | 2016-06-04 | |
| Vassdal - Melandsjø | Trøndelag, Norway | 1 | 1 | 0 | 2019-06-09 | |
| Vassenden | Møre og Romsdal, Norway | 1 | 1 | 0 | 2010-09-05 | |
| Vasshus | Rogaland, Norway | 1 | 1 | 0 | 2009-06-03 | |