Cetoniidae

Cetoniidae, commonly known as flower beetles or flower chafers, is a group of beetles in the superfamily Scarabaeoidea. In some classifications Cetoniidae is treated as a distinct family, while in others Cetoniinae, a subfamily within Scarabaeidae, is used. Members are characterized by a robust body, smooth elytra, and often bright metallic coloration. The group comprises hundreds of species ranging in size from modest to large.

They are widely distributed in tropical and subtropical regions, particularly Africa and Asia; some species occur in Europe and the Americas in captivity or introduced. They inhabit forests, savannas, gardens, and other areas where flowers are available.

Adults are diurnal and feed on flowers, nectar, pollen, and ripe fruit. They typically have large, plate-like antennae with lamellate clubs. Many species have bright iridescent colors and patterns. Larvae develop in decaying wood, leaf litter, or soil rich in organic material. The life cycle is holometabolous with complete metamorphosis.

Ecological role includes pollination as they visit flowers; larvae contribute to the decomposition of wood and organic matter. Some species are popular in the pet trade and beetle-keeping communities; others are used in educational displays. Conservation concerns include habitat loss and over-collection in some areas.

Representative genera include Cetonia, Dicronorrhina, Gymnetis, Megalorrhina, Chlorocala.