Would you call this a sirtalis or a parietalis? Neither or both? Impossible to tell? I have found one picture of an identical T. sirtalis, that was identified as a T. s. sirtalis from Iowa. If I remember correctly Iowa is one of the states where intergradiations of T. s. sirtalis and T. s. parietalis occur.

The red markings are visible only on the front half of the snake's body and from my avatar you should be able to see what they look like after the snake feeds. Well, maybe not.

Can anybody shed some light on this?