Last modified: April 20, 2021, 8:18 a.m.
An uncommon species in Belgium, occurring in scattered populations all over the country.
The mine starts as a small, gallery leaf mine on the underside of the leaf, but later instars eat their way to the upperside of the leaf, causing a blotch mine in which they spin many threads causing the leaf to fold strongly.
See also gracillariidae.net and bladmineerders.be.
A pure white cocoon.
The caterpillars of the second generation hibernate. Pupation takes place in the mine, inside a pure white cocoon. The adults are attracted to light.
The adults fly in two generations a year: from late April till late May and again in August.
The larvae feed on Plantago lanceolata, but can occasionally also be found on Plantago maritima.