Bucculatrix clavenae is a moth in the Bucculatricidae family. It was described by Klimesch in 1950. It is found in the Alps. There is probably one generation per year. The larvae feed on Achillea clavena and Achillea millefolium. They mine the leaves of their host plant. The mine starts as a fine corridor, with a central frass line. Older larvae live freely on the leaf, creating fleck mines. Pupation takes place in a white, spindle-shaped cocoon. Larvae can be found from June to July. The species overwinters as an egg or in the larval stage.