Metallic wood-boring beetles

Definition

A common name for beetles of the family Buprestidae, characterized by their striking metallic or iridescent exoskeletons and wood-boring larvae. Adults typically exhibit brilliant copper, green, blue, or gold coloration due to structural pigments, while larvae—known as flatheaded borers—tunnel under bark and into heartwood of living or dead trees, often creating flattened, meandering galleries. The family contains approximately 15,500 described species and includes significant forest pests and species valued for decorative purposes.

Etymology

From Latin *metallicus* (metallic) + English *wood-boring* (referring to larval habit) + *beetles*; the family name Buprestidae derives from Greek *buprestis*, an insect said to have been used as a poison.

Example

The emerald ash borer (*Agrilus planipennis*), a destructive invasive metallic wood-boring beetle, has killed tens of millions of ash trees in North America since its introduction in the early 2000s.

Synonyms

• Jewel beetles
• Buprestids

Related Terms

• Flatheaded borers
• Wood-boring beetles
• Buprestidae
• Emerald ash borer
• Agrilus
• Structural coloration
• Xylophagy
• Forest entomology

Usage Notes

The term is used interchangeably with "jewel beetles" in general contexts, though specialists may reserve "jewel beetle" for particularly colorful species and use "metallic wood-boring beetle" when emphasizing economic or ecological impact. Not all species are true forest pests; some develop in dead wood and contribute to nutrient cycling. The flattened larval form distinguishes them from roundheaded borers (Cerambycidae).