The Scarlet Lily Beetle (Lilioceris lilii) is native to Europe but is now widely found in North America. Larvae damage cultivated lily and Fritillaria plants. Photo by Keith Edkins
The beetle family Chrysomelidae, or leaf beetles is a family of over 35,000 species in more than 2,500 genera.
Leaf beetles are recognizable by their tarsal formula and distinguished from long-horned beetles (family Cerambycidae) by their short, filiform antennae. Adult and larval leaf beetles feed on all sorts of plant tissue. Many are economically important pests of agriculture, for example the colorado potato beetle (Leptinotarsa decemlineata), the asparagus beetle (Crioceris asparagi), and various flea beetles.