Clark's spiny lizard

No problem! There are so many lizards out that way, they can certainly be tricky

Thanks Ashley

Pretty sure it is a female clark's spiny lizard, Sceloporus clarkii. They have the crossbars on the front limbs. http://www.reptilesofaz.org/Lizards-Subp...

This one is a Sceloporus :) Tree lizards have two rows of enlarged scales down the back, this guy doesn't have that. I have to get to bed, but if you haven't figured out which one when I get on tomorrow afternoon I will take a look!