Broad Necked Root Borer

carrion beetle?
We found this beetle while walking the dog in his “yard”. From what I can tell it is a carrion beetle of some type – but larger than I have ever seen. It appears to be a ?gravid? female that occasionally extends a half-inch long ovipositor. I tried to get the ruler in the photo, but it was moving around – she is over 2 inches (5 cm) long and nearly 2.5 inches long if you measure to the tip of the antennae. Largest beetle I have ever seen – What is it exactly?? Thanks,
C. Tumminello
Waynesboro, PA

Hi C,
This is a Broad Necked Root Borer, Prionus laticollis.

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