in many localities of Belgium, but always in low numbers. Recent observations only known from three provinces.
larva lives in a slight silken web on the underside of a leaf of
Heracleum sphondylium, Pastinaca, Anthriscus
or Angelica, causing the upperside to colour brownish. Often,
several larvae occupy the same leaf. Pupation takes place in an
open network cocoon amongst detritus on the ground.
adults fly in two generations a year: from June till August, and
again from October till April of the next year. They hibernate.
Belgium, Antwerpen, Kontich, 28 August 2004.
(Photo © Gaston Sallaets)