This common moth is widespread, and the adults resemble several of the other coleophora species making accurate identification difficult unless found on the food plants.
It is on the wing from June and August.
The wingspan of the Coleophora follicularis ranges between 12 and 14mm.
Coleophora follicularis is common and widespread throughout the UK and Ireland although more common in the southern parts of Scotland than in the north.
The larvae of this moth form cases underneath the leaves of the food plants where they remain until the following year.