Last modified: Aug. 12, 2020, 4:37 p.m.
Formerly only found in the southern regions of Belgium where it is common in calcareous localities. Around 2006 some records more to the north became known, more than certainly vagrants from the south. From 2018 on, the species is well established and fairly common in the entire country but it is still rare at the coast.
The adults fly from July till mid September in one generation a year. They are active during the day, feeding on flowers. They come occasionally to light.