Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A worldwide community photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Palo Verde Root Borer (female)

Derobrachus hovorei


Very large, heavy-bodied beetle, perhaps the largest beetle in the U.S. Note female has bulky body, but slender antennae compared to male.


Attracted to lights in a highly urbanized part of Tucson, Arizona. Typical of Sonoran Desert habitat with host tree (palo verde), mesquite, cacti.


This species was formerly known as Derobrachus geminatus. Freshly-emerged adult beetles are dark reddish brown, becoming nearly black as their exoskeleton hardens completely.

Species ID Suggestions

Sign in to suggest organism ID

No Comments

Spotted by

Tucson, Arizona, USA

Spotted on Jul 22, 2011
Submitted on Mar 7, 2013

Related Spottings

Palo verde borer beetle Palo Verde borer beetle Longhorned beetle Palo Verde Beetle

Nearby Spottings

Palo Verde Root Borer (male) White-striped Tiger Beetle Long-necked ground beetle Stout's Bostrichid
Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team