Last modified: Dec. 14, 2024, 11:05 a.m.
An uncommon species in Belgium, occurring in scattered populations all over the country.
Native
The first instars have the same color as the plant tissue light green. In the last instars, the caterpillar gets a greyish-brown color with a dark brown head capsule.
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.