Last modified: April 22, 2020, 5:25 p.m.
First discovered in Belgium in 2009. Nowadays a rare species throughout the country, more observations in the northern part.
A rather little ochreous till ochreous-brown species, with lighter stripes on the wings.
The wingspan is about 11 mm.
The eggs are smoothly green.
The caterpillars are yellow-green.
The adult case is straight tubular and made of silk. The case is ash grey, the surface is granular and with blackish length lines.
It is about 7–10 mm. The mouth angle is 70°–80°.
See also bladmineerders.be.
The eggs are deposited at the underside of the plants. At first the young larvae are making an upper surface corridor. Later on they make the first case and go to live at the underside of the leaves. The larvae can be found from September until May.
The moths fly from May until the end of September in 2 or 3 generations.
Monophagous on Saponaria officinalis.
Only where the hostplant occours.