What kind of frog is this?

[NewtB]

So this frog was found in a used auto part that was brought into a store. I am trying to figure out what kind it might be. I have placed him in our terrarium, but want to be sure it's a safe environment for both him and my salamanders that are there. Here he is:

We are located in SouthEastern Washington state area. I WANT to say it's a Pacific tree frog?
Thanks, in advance, for any input!

 

[NewtB]

Ok, so I'm pretty sure I've answered my own question. I'm fairly certain it IS a Pacific Tree Frog.

 

[FrogEyes]

Probably Pseudacris sierra, the Sierra/Palouse treefrog, but exact identities in that region are presently lacking. Pseudacris regilla is probably more or less restricted to the northwest coast and Cascades. But you are essentially correct - it is the Pacific treefrog complex, considered a single species until fairly recently.