Craesus septentrionalis (Linnaeus, 1758)
Some ten oval eggs are deposited just below the epidermis in a row at the underside of the midrib of a leaf. The larvae live freely on the leaves, mostly gregariously, feeding at the leaf margin.
Several generations; hibernation as a prepupa in a cocoon in the soil.
distribution within Europe
Beneš & Holuša (2015a), Buhr (1964b), Liston (1996b), Pschorn-Walcher & Altenhofer (2000a, 2006a), Roskam (2019a), Savina & Chevin (2012a).