Location: South west U.S.
September 2, 2011 1:27 pm
Could you, would you please identify this beetle for us?
This is a female Hercules Beetle, and considering your location, it is most likely a Western Hercules Beetle, Dynastes grantii. All of the sightings on BugGuide that are listed on the data page are from Arizona. Males of the species have exaggerated horns.