Last modified: April 22, 2020, 6:34 p.m.
First discovered in Belgium in 1981 at Resteigne (LX). A very rare and local species, probably extinct in Belgium
The forewings are intense yellow with white stripes. The antennae are alternately ringed black and white. Wingspan is 12,5–15,5 mm.
It is very easy to confuse this species with C. vulnerariae.
The youth case can be till 12 mm long and is made from a dried flower.The caterpillar makes a trivalved case.The final case is 6,5 mm and greyish brown. The mouth angle is 30°. At first the case is withish woolly hairy but that is disappearing during wintertime.
See also bladmineerders.be.
The larvae are sitting on the seed capsules eating the seeds. There are clearly eater holes to see in the seed capsules. The larvae live from May till the end of August. Later on they hide in the lower vegetation to hibernate.
They are on the wing mostly in July.
Cytisus supinus, austriacus.