A population of U. ornatus ornatus seems to be very well established on my property as well as the rest of our block. I am unsure as to how widespread they are here but this population has been here for at least 10-15 years. Every year I see more and more YoY's adding to my belief that they are well established.

Edit: This is not the same population that Jonathan Hakim and Jim Bass observed in San Bernardino. This population is in Barstow, CA as stated in the locale.