I was out herping here in SoCal (Sisar Canyon (34⁰26'40.93"N 119⁰08'04.28"W)) on 5/8/2010 with my son and we came across these Arroyo Canyon Tree Frogs (Identified per local park sign). However, I can't seem find them in my National Audubon Society Field Guide. Closest thing is a canyon tree frog which doesn't come anywhere near my part of California. I was trying to attach a scientific name to them in my field collecting journal, but so far all I am able to put down is "Hyla * *"...any suggestions.

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