Last modified: March 11, 2021, 3:05 p.m.
It has been discovered in Belgium on 1964-07-18 in a plant nursery at Melle in the Ghent region (OV), more observations became known after 2004. Hitherto still a very rare and local species.
The caterpillar bores in the roots of the food plant. Caterpillars have been found in May–June.
Pupation in the larval feeding place.
One generation a year from May till September. Because of this long period, it is sometimes presumed that there might be two generations a year.
Monophagous on Filipendula ulmaria though it has been doubtfully recorded also from Spiraea.
Wet meadows, swamps, moist habitats at forest edges.