common species throughout Belgium. Can sometimes be a pest in gardens
where cabbages are grown.
larva feeds in the heart or amongst young spun leaves of Brassica
spp., Raphanus spp. or some other species of
Cruciferae. Larvae from the Autumn generation hibernate in their
cocoons. Pupation takes places in a cocoon beneath the surface of the
adults fly in two generations per year from early May till the end of
June and from early August till the end of September. They are active
at dusk and come to light.
Namur, Belvaux, 18 May 2007.
(Photo © Chris Steeman)