What sort of creature is a cockchafer?

A cockchafer is a type of large beetle belonging to the family Scarabaeidae, commonly known as the May bug or melolontha. Adult cockchafers are typically brown and can be recognized by their distinctive long antennae. They are primarily active during spring and early summer, and their larvae, known as grubs, live underground, feeding on plant roots. Cockchafers are often considered pests in gardens and agricultural fields due to their feeding habits.