Ponderous Borer

What the hell is this thing?
Location: Denver, Colorado
July 22, 2011 9:38 am
I live in Colorado and saw this thing on my driveway, when my dog was considering it for breakfast. Haven’t seen a bug this huge in 10 years. What the devil is it?
Signature: Grossed Out in Colorado

Ponderous Borer

Dear Grossed Out in Colorado,
Your large beetle is one of the Prionids, more specifically, the Ponderous Borer, Trichocnemis spiculatus.

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Location: Colorado