Favonius quercus (Purple Hairstreak)
Observations/month
| Month | 1970–2009 | 2010 | 2011 | 2012 | 2014 | 2017 | 2018 | 2019 | 2021 | 2022 | 2023 | 2024 | total | |
| Januar | | | | | | | | | | | | | | |
| Februar | | | | | | | | | | | | | | |
| Mars | | | | | | | | | | | | | | |
| April | | | | | | | | | | | | | | |
| Mai | | | | | | | | | | | | | | |
| Juni | | | | | 1 | | | | | | | | 3 % | |
| Juli | 5 | 1 | 2 | | 1 | 2 | 9 | 3 | | 1 | 2 | | 67 % | |
| August | 4 | | | 1 | | | | 4 | 1 | 1 | | 1 | 31 % | |
| September | | | | | | | | | | | | | | |
| Oktober | | | | | | | | | | | | | | |
| November | | | | | | | | | | | | | | |
| Desember | | | | | | | | | | | | | | |