Help identifying this larva? Eastern US, Western PA specifically

It's a 3rd instar larva of the Green June Beetle (Cotinis nitida) - 

https://bugguide.net/node/view/520

They normally live underground, but can occasionally be seen roaming around on the surface for various reasons, such as when the ground becomes too saturated with moisture after rain, or, if they are seeking the right kind of soil in order to construct a cocoon in which to pupate.  In the case of this species, sandy / clayey soil is what they use to build their cocoons.

 
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