Mompha lacteella is a moth in the family Momphidae found in Asia and Europe.
The wingspan is 11–13 mm. Adults are on wing from May to July.[1]
The larvae feed on great willowherb (Epilobium hirsutum) and broad-leaved willowherb (Epilobium montanum), mining the leaves of their host plant. Larvae can be found from March to April.[2]
Pupation takes place inside the mine or in the ground.
It is found in most of Europe, except the southern parts of the continent. In the east, the range extends through Asia Minor, the Caucasus, eastern Transcaucasia and southern Siberia to the Russian Far East.