Derobrachus germinatus or Palo Verde Root Boring beetle

The Palo Verde Root Borer gets its name because of the roots it eats. As grubs they like the roots of trees and bushes particularly the Palo Verde roots, hence their name. They also eat citrus, mulberry, and elm trees. They can survive for long periods of time without much food at all.

These black and brown beetles reach about 6-9 cm. They have long antennae. with hard shell exoskeletons.

In the early evening they fly looking for a mate. They then lay their eggs in the soil around a plant. Once these eggs hatch into grubs, they live in the ground for as long as 3 years before ever coming to the surface living off the juices of the plant root.

Motorcycle riders beware. Getting hit in the face by one of these (they are attracted to lights) at 50 miles per hour can cause some damage.
Found this one under my front porch light.