Of the 2 subspecies (D. p. arnyi & D. p. regalis) I play with out here in NM, I've yet to have either attempt to bite. They are more interested in fleeing, musking, or hiding their heads. I've not heard of any bites, and as mentioned they are rear-fanged. They mostly eat small inverts, with large subspecies like regalis eating lizards, snakes, and small mammals.
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