At up to 1.5 inches in length, these beetles are hard to miss when they are around. The males have large paddle-like antennae that they can feather out to look a bit more intimidating as well as help them detect a mate. They can be found across the western half of North America. When disturbed, they make a hissing sound by rubbing their abdomen against the inside of their wing covers. They are attracted to lights at night.
Photo by: Laura Ann on 7/31/21 near Florence, MT