I love your site, and I love beetles. I live in southeastern Utah, and I found this guy on some rabbit brush the other day. He was about 3/4 inch long (not incl. antenae), and more red than he looks in the photo. Is he some sort of fancy borer? He’s beautiful, and I am very disappointed that he had a broken antenna. Thanks for the help!
This is one of the Longhorn Borer Beetles, but it does not have a common name. It is Crossidius coralinus and there are some wonderful photos posted to BugGuide, including ones from Utah.