Last modified: April 12, 2021, 4:34 p.m.
A rare species throughout Belgium.
The larva feeds first in an developing leaf-bud of Ulmus ssp., which show a characteristic pattern when expanded. Later on in a spun leaves, especially those of a terminal shoot. Pupation in a silken cocoon in larval shelter or on soil amongst leaf-litter. Its known, if the larva is dislodged from its normal foodplant it accepts other food sources as Acer campestre and Stellaria holostea.
The adults are active from dusk onwards and later come to light.
The adults have been observed from June till August.
The larva feeds on Ulmus.