Chafers

Definition

Informal collective name for scarab beetles (family Scarabaeidae), most commonly applied to members of the subfamilies Melolonthinae (May beetles, June beetles, grass grubs) and Cetoniinae (flower chafers, fruit chafers). Chafers are typically medium to large, often robust beetles with lamellate (clubbed, plate-like) antennae; many species have adults that feed on foliage, flowers, or pollen, while larvae (white grubs) are soil-dwelling root feeders. The term is widely used in agricultural and ecological contexts, though it lacks formal taxonomic rank.

Etymology

From Middle English chaver, variant of chafare, probably imitative of the sound or from the verb chafe (to rub, wear away), alluding to the feeding damage caused by adults on leaves and flowers.

Example

The European cockchafer (Melolontha melolontha) and the garden chafer (Phyllopertha horticola) are serious turf pests whose white grub larvae damage grass roots, while adult rose chafers (Macrodactylus subspinosus) skeletonize rose blossoms and grape leaves in North American vineyards.

Synonyms

• Scarab beetles
• Melolonthinae (for the root-feeding group)
• Cetoniinae (for the flower-feeding group)

Related Terms

• Scarabaeidae
• Melolonthinae
• Cetoniinae
• white grubs
• lamellate antennae
• Rutelinae
• Dynastinae

Usage Notes

In British and European usage, 'chafer' often specifically denotes Melolonthinae (especially Melolontha), whereas in broader English usage it includes Cetoniinae and sometimes other scarab subfamilies. The term is never used for dung beetles (Scarabaeinae) or rhinoceros beetles (Dynastinae) despite their close relationship. When precision is required, specialists prefer subfamily or family names; 'chafer' remains useful in agricultural extension, gardening literature, and regional faunal works. The spelling 'chafer' (singular) and 'chafers' (plural) is standard; 'chafer beetle' is a common pleonasm in popular writing.