Western Cicada Killers are native to the western U.S. states and Mexico. Though adult females kill cicadas for their offspring, male and female adults drink nectar.
Details of the:
Western Cicada Killer
Category: Bee, Ant, Wasp and Similar
Common name: Western Cicada Killer
Scientific Name: Sphecius grandis
Size (Adult, Length): 30mm to 50mm (1.18in to 1.97in)
Identifying Colors: orange, yellow, brown
Additional Descriptors: buzzing, flying, ground, large, dots, bands
North American Reach (Though Not Limited To*): Arizona; California; Colorado; Nebraska; Nevada; New Mexico; Oklahoma; Oregon; Texas; Utah; Washington; Wyoming; Mexico
* Keep in mind that an insect's reach is not limited by lines on a map and therefore may appear in areas/regions/states beyond those listed above.