Beetle of the family Scarabeidae. The adults eat foliage or flowers, and the underground larvae feed on roots, chiefly those of grasses and cereals, and can be very destructive. Examples are the cockchafer and the rose chafer Cetonia aurata, about 2 cm/0.8 in long and bright green.
Any of various large European beetles destructive to vegetation as both larvae and adult; SYN. May bug, May beetle, Melolontha melolontha.
Or maybug; European beetle Melolontha melolontha, of the scarab family, up to 3 cm/1.2 in long, with clumsy, buzzing flight, seen on early summer evenings. Cockchafers damage trees by feeding on the foliage and flowers.
The larvae live underground for up to four years, feeding on grass and cereal roots.