Definition of cockchafer in US English:



  • A large brown European beetle that flies at dusk and often crashes into lighted windows. The adults are damaging to foliage and flowers, and the larvae are a pest of cereal and grass roots.

    Melolontha melolontha, family Scarabaeidae

    • ‘At peak abundance, cockchafers reached densities of more than 50 individuals per meter of twig on some fruit trees and on shrubs.’
    • ‘What a pleasant change from the labourer's unvarying meal of bread, lard, and bacon would be a good dish of fried cockchafers or grasshoppers!’


Early 18th century: from cock (expressing size or vigour) + chafer.