Stigmella assimilella
Stigmella assimilella is a moth of the family Nepticulidae. It is found in most of Europe, east through Russia to the eastern part of the Palearctic realm.
[Image:Stigmella.assimilella4.-.lindsey.jpg|thumb|left|200px|Stigmella assimilella mine]
Its wingspan is. The larvae mine the leaves of their host plant, which typically includes species of aspen including Populus alba, Populus canescens and Populus tremula.