palo verde

Derobrachus hovorei - Palo Verde Borer Cerambycidae Tucson, Arizona Every June, hundreds of thousands of giant beetles emerge from beneath the Tucsonian soil. The enormous size of these beetles- up to several inches long- makes them among the most memorable of Tucson's insects. They cruise about clumsily in the evenings, flying at eye level as they disperse and look for mates. Palo Verde beetles spend most of their lives as subterranean grubs feeding on the roots of Palo Verde trees. Adults emerge in early summer, usually ahead of the monsoon, and by August they are gone. It is still a…