The larva mines into the inter-parenchyma of the leaves.
A single larva mines a number of leaves, entering though a round opening, mostly in the base of the leaf.
Generally, the larva mines all leaflets of a leaf before moving to the next leaf.
The larva mines directly into the leaf through the bottom of the egg.
The larva mines a single leaf and drops to the ground with this leaf.
A single larva mines out several leaves, feeding from the base to the tip.
The larva mines the leaf of the host plant until late June and fixes the case on the twig before pupation.
The larva mines in the lower leaves.
The larva mines in two to three leaves and moves from one leaf to another through the petioles.
The larva mines out a leaf completely and often also mines part of the stem.
