Carpinus betulus
The larvae feed on hazel ("Corylus avellana") and sometimes hornbeam ("Carpinus betulus"). Other recorded host are "Carpinus orientalis", "Corylus colurna", "Corylus maxima", "Ostrya carpinifolia" and "Ostrya virginiana". They mine the leaves of their host plant which are narrow and often angular. Sometimes there can be several larvae mining the same leaf.