What's That Bug? does not endorse extermination

California Prionus Grubs

Posted by November 28th, 2005 at 1:00 am

Categories

Beetles

Possible Prionus californicus
Got a good one for ya…I have found many photo references to the adult California Prionus and not many pics of the larvae. My husband and father in law were removing the last bits of a long since dead oak tree and found 2 gargantuan grubs in the midst of the rubble. The larger of the two measured 4 inches (it was not fully extended either!) and the smaller was just over 3 1/2 inches. They have some nasty looking choppers and a reddish pink "tongue" looking thing that would come out and retract on the top of it’s black head. I’m certain this should be turned over to Spielberg or Wes Craven for their next horror movie!
EW!!
Thanks for any help.

Hi Sara,
We are in agreement with your identification, and we are happy to post your photos and letter.

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