Last modified: Feb. 19, 2021, 3:03 p.m.
A not so common species in Belgium. Populations have declined because of the Dutch elm disease.
The larva is bluish green.
The cocoon is brown to reddish brown.
Egg is laid on the underside of a leaf, generally close to a rib.
The larva makes a leafmine on the foodplant.
Pupation in a brown to reddish brown cocoon among leaf litter.
The adults fly normally in one generation a year with adults emerging over a long period. They fly mainly in June.
The larva lives on Ulmus.