Last modified: Jan. 31, 2021, 4:18 p.m.
An extremely rare and very local and declining species in Belgium, only known from NA. Rarely recorded as an imago.
Strictly protected under European law: EU Fauna-Flora-Habitats Directive (FFH), Annex II (Species for the conservation of which special protection areas must be designated) & Annex IV (species of common interest to be strictly protected).
The adults fly in October.