A rare species in Belgium.
larva bores into a seedpod of Ulex europaeus or Genista
and eats the developing seeds. Later it leaves the pod and construct a
cigarshaped case made of sepals, which it attaches to a seedpod and
bores into the pod to feed. Finally it leaves its feeding case and
spins another case entirely of silk attached on the upper surface of
the lower calyx lobe of the dead flower were it pupates after
adults fly onwards from late May towards July in one generation. They
are active by day, especially at dusk and later comes infrequently to
Namur, Maizeret, 12 August 2010.
case whilst feeding on Ulex europaeus
(Photo © Jean-Yves Baugnée)