Bucculatrix phagnalella is a moth of the Bucculatricidae family. It is found in Spain and on Mallorca, Rhodes and the Canary Islands. The wingspan is 7–8 mm. The forewings are whitish, thickly sprinkled with fuscous and fawn-brown scaling. The hindwings are shining pale grey. The larvae feed on Phagnalon saxatile. They mine the leaves of their host plant. The young larvae create a corridor with a broad central frass line. Older larvae live freely, creating fleck mines along the leaf margin. The larvae can be found from November to December.