Very large wasp. Most individuals are like this one, blue-black with orange wings - the "xanthic" morph. In some parts of its range it has black wings - the "melanic" form.
Canyon in the Sonoran Desert (Southwestern Research Station).
Full story on this species can be found here: http://bugeric.blogspot.com/2012/11/wasp...
Lat: 31.88, Long: -109.21
Spotted on Aug 13, 2011
Submitted on Dec 11, 2012