Arizona records
Mexican Black-headed Snake in Arizona
HarmlessTantilla atriceps

Yes. The Mexican Black-headed Snake has been recorded in 4 Arizona counties. It is non-venomous (harmless). Tiny and slender, plain brown or tan, often with a darker head cap.
Arizona counties with Mexican Black-headed Snake records
4 listedSee the full Mexican Black-headed Snake profile or all snakes in Arizona.