Last modified: Nov. 2, 2024, 12:20 p.m.
A common species in Belgium but nevertheless overlooked.
Native
The mine is a large, full depth white blotch along the edge of the leaf. The black frass lies in long spaghetti-like threads.
See also bladmineerders.be
Pupation takes place inside a tough silken cocoon.
The egg is laid in young leaves. The mine is a large, full-depth white blotch along the edge of the leaf. The black frass lies in long spaghetti-like threads. The caterpillar hibernates as a pupa in a tough silken cocoon in the soil or debris.
The adults can be observed resting on the trees or flying around the trees in the sunshine. Later they occasionally come to light.
The adults fly during March and April.
The monophagous larva feeds on Betula-species.