Last modified: March 4, 2021, 11:38 a.m.
A very rare species in Belgium.
Pay close attention to abandoned mines, because they resemble the mines of a Diptera Agromyza albitarsis very well. Also look out for the Hymenoptera: Heterarthrus ochropoda (sawfly) which occur at the same time on the host plant, if no caterpillars are present in the leaf mine.
See also bladmineerders.be<
The usually 5 to 10 eggs are deposited in groups on the upperside of the leaf, usually along a vein. The white larvae form large, upper-surface blotches in which many larvae may be present because mines can merge.
Pupation is external, mostly on the leaf. Exit slit in upper epidermis.
Different species of: Populus and in Central Europe also on Salix.