Probably Nuttall's Blister Beetle

Montana Beetle?
April 6, 2010
I photographed this insect, and some others, at about 8000 feet in central Montana in a Lupine field. Some were mating. They were quite large, I’m guessing about 1.5 inches. This was in July 2009. They were strikingly beautiful in the sunlight, and I would love to know what they were. And love your website too, by the way. Thank you.
Montana Hiker

Nuttall's Blister Beetle, we believe

Dear Montana Hiker,
This is a Blister Beetle in the genus Lytta, possibly Lytta cyanipennis based on images posted to BugGuide, or more likely, Lytta nuttalli, commonly called Nuttall’s Blister Beetle, also pictured on BugGuide.

Photo of author


BugMan aka Daniel Marlos has been identifying bugs since 1999. is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

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