Last modified: April 23, 2019, 12:44 p.m.
A very rare species in Belgium.
On the underside of the leaf, usually in an angel against the midrib.
The mine is an irregular gallery that is shorter and broader than the mine of Stigmella microtheriella. In the first part of the mine the frass fills the gallery allmost completely, further on it's less densly scattered leaving clear margins.
See also bladmineerders.be
The cocoon is white to pale yellow.
Adults are on the wing in May and again in July and August.
Monophage on Carpinus betulus.