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
Carex sylvatica Carex sylvatica Carex sylvatica is a species of sedge found in deciduous woodlands across Europe. It typically reaches tall, and has an inflorescence made up of 3–5 pendent female spikes and a single male spike. It is also used as a garden plant, and has been introduced to North America and New Zealand. "Carex sylvatica" "resembles a small "C. pendula"", growing to around tall, or up to in exceptional cases. Its rhizomes are very short, giving the plant a densely cespitose (tufted) form. The leaves are long, wide and thick, with 17–31 parallel veins. The leaves have a slight keel,