Phyllobrostis hartmanni is a moth in the family Lyonetiidae. It is found in the Alps and the surrounding areas in Switzerland, France, Germany, Austria, Italy, and Slovakia.
The wingspan is 6.5âÂÂ7.2 mm for males and 7âÂÂ8 mm for females. The larvae feed on Daphne alpina, Daphne cneorum, and Daphne striata. They mine the leaves of their host plant.