Blister Beetle, genus Cysteodemus - Cysteodemus wislizeni
Big Bend Ranch State Park, Presidio County, Texas, USA
March 31, 2007
Size: 1.5 inches
Is this C. wislizeni or another species? It was scampering in a wash in the Chihuahuan Desert of the Big Bend Region. I have seen others in the Mojave Desert of California with powdery white instead of the metalic purple.