Can you help me identify this wasp?? I came across this 2 years ago in July at Lake Edison, which is located in the Sierra’s in California. It was about 2 1/5 inches big…. maybe a little larger then that even. (Embedded image moved to file: pic18023.jpg)
Denna Myers

Hi Denna,
This is a female Horntail Woodwasp, Urocerus gigas. She uses the ovipositor, that appears to be a stinger, to deposit eggs deep in dead and dying wood.

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