Traits: Small, round-bodied insect with thickened front wings; small antennae with clubs on the tips

Habitat: Under tree bark

Foods: Varies by species; majority eat the underside of tree bark or wood; others eat fungi that grow in the tunnels the beetles bore into wood

Eaten by: Woodpeckers, brown creepers, ichneumon larvae

Do You Know? Most bark beetles need fungi to break down and digest wood. Some species have these microscopic organisms living in their stomachs.