Apoderus coryli length of about . This species is rather similar to the oak roller weevil ("Attelabus nitens") and "Apoderus erythropterus", that shows a black pronotum. All three species produce leaf wraps into which the eggs are laid. Adults can be found between May and September. They feed on leaves of the host plant, the hazel ("Corylus avellana"), hence the Latin name "coryli" of the species, meaning hazelnut. Only in exceptional cases other deciduous trees, such as alder ("Alnus" species), birch ("Betula" species), common hornbeam ("Carpinus betulus") , common beech ("Fagus sylvatica") and hop-hornbeam ("Ostrya carpinifolia") are used as host plants. After
Parornix fagivora continues living freely under a folded leaf margin or leaf tip. Parornix fagivora Parornix fagivora is a moth of the Gracillariidae family. It is found from Sweden to the Pyrenees, Italy and Albania and from Great Britain to southern Russia. The wingspan is 11–14 mm. The larvae feed on "Fagus sylvatica", including subspecies "Fagus sylvatica orientalis". They mine the leaves of their host plant. The mine starts as a small lower-surface epidermal corridor with reddish brown frass. Later, it becomes a small rectangular full depth blotch with black frass. The larva deposits only little silk in the mine, that remains