Last modified: March 26, 2021, 2:21 p.m.
A very rare species in Belgium, only discovered in 2016 and occurring only in NA.
The caterpillar is greenish white with a lighter brownish head.
The caterpillar makes a silken slender case, about 9 mm of lenght and which is light ochreous brown colored.
The mouth angle is 20°.
See also bladmineerders.be.
The caterpillar forms little fleck mines, mostly more than one on a leave.
The eggs are deposited at the underside of the leaves.
Caterpillars are appearing in the autumn making a little case and feeding at the lower parts of the hostplant. The caterpillars are overwintering half grown and start to feed again in springtime. The caterpillar makes mostly more fleck mines in one leave.
The larvae are full-fed in June.
The adults are on the wing from the end of June till the beginning of August.
In Belgium it occurs in limestone areas where the food plant growns.