---

Your specimen doesn't fit the "ideal" T.regelationis and I also have some doubts about the species, also after looking at the other photographs you posted on iNaturalist. In general wing venation in T.regelationis could be rather variable, and the clouding at r-m might be bleak as well, although usually it is visible rather well. Ewa Krzeminska thinks it is T.regelationis, but I am more cautious and would leave it with a question mark. Preparation of a genital fork could help to decide.