The wingspan is 8.5–10 mm. There is one generation per year.
The larvae feed on Populus canescens and Populus tremula. They mine the leaves of their host plant. Each mine has one larva, and each leaf may have up to 26 mines. The frass is clumped in a corner of the mine. Pupation takes place in the mine in a white cocoon.
^Gregory R. Pohl; Jean-François Landry; Christian Schmidt; et al. (2018). Annotated checklist of the moths and butterflies (Lepidoptera) of Canada and Alaska. Series Faunistica. Vol. 118. ISBN978-954-642-909-4. OL32898597M. WikidataQ97158808.