Wingspan c. 8mm.
A somewhat scarce and local species, with a scattered distribution across a number of English counties. There have also been records in Wales and Ireland.
The adult moth is most often encountered by beating alder Alnus trees, and although little is known about its lifecycle, it is presumed to feed on this foodplant, perhaps in the buds or the bark of twigs.
The scientific name quadrimaculella describes the four yellowish spots on the forewings, making for a quite distinctive appearance.