Wasn't meant as such. You know I would like to give out some facts, and maybe even some downright fabricated opinions with nothing to back it up, but Robert didn't elaborate and you know how slow I can be. I mean, what kind of facts?

Wait a sec... I think I might have an idea. Robert, even though it's just a drawing I get the feeling to represents a real snake. Without getting into the exceptions, a concinnus is red spotted. Infernalis and parietalis are red sided, often literally, meaning their sides are red other than some black spotting. Given those two choices of "red sided" snakes, I think it looks more like infernalis.

You can see how the sides on that snake appear to be red with some dark blotches. A concinnus would typically be dark with some red spots, not red with dark spots.