Orange Assassin Bug
Pselliopsis
Image taken in Rackensack Canyon, Maricopa Co., Arizona. 31 May 2008.
Reduviidae -- Assassin Bug Family
This brightly colored predator can deliver a painful bite if mishandled - the argent orange color is probably aposematic and likely a warning to birds or others that might be tempted to turn the tables on this predator.
This insect, a true bug in the family Reduviidae, was found hunting on foliage of Arizona Sycamore -- Platanus wrightii.