Leaf Beetle, common name for any of about 20,000 species of beetles distributed worldwide. Leaf beetles eat only vegetation, especially leaves; some are agricultural pests. They usually have small, plump bodies, with smooth, metallic surfaces, and short legs. The insects lay their eggs on the ground, and the larvae usually pupate on or in the ground. Some species are aquatic. About 1400 species of leaf beetles are found in North America.
Scientific classification: Leaf beetles make up the family Chrysomelidae of the order Coleoptera.