The wingspan is 11–14 mm.
The larvae feed on Achillea, Agrimonia, Alchemilla vulgaris, Filipendula, Fragaria vesca, Geum rivale, Potentilla reptans, Rubus fruticosus and Spiraea douglasii. They mine the leaves of their host plant. The mine consists of a small full depth blotch, which is transparent at first. The mine starts at the leaf margin, mostly near the leaf tip. The frass is scattered about the mine in grains. There may be several mines in a single leaf.
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