Palo Verde Beetle (larva)

Arid and semi-arid regions of the Southwestern United States and Mexico, often associated with desert trees and shrubs.

Larvae primarily feed on the decaying or dead roots of various trees, especially mesquite, willow, cottonwood, and the Palo Verde tree. Adults typically do not feed.

As larvae, they tunnel and feed within woody plants for several years (up to 3-5 years) before pupating. Adults are typically short-lived and focus on reproduction. Adults are nocturnally active and can be attracted to lights.

Generally beneficial as decomposers, helping to break down dead wood and recycle nutrients. However, in large numbers, larvae can sometimes stunt the growth or contribute to the decline of stressed or young healthy trees by damaging roots. They are not known to be harmful or poisonous to humans but can deliver a painful bite if handled.