Last modified: March 14, 2021, 12:29 p.m.
A very rare and local species in Belgium, but not seen for a long time. More than likely extinct.
It flies very low and swiftly over the lowest parts of the vegetation in late afternoon's sunshine. Later it comes to light.
Adults are the wing late May towards end of June, occasionally later.
Open heathland an woodland, raised bogs or moors.