>>> "My question is: how can you tell the difference between a snake with orange and black markings and one that is an Okeetee?"
Well, the term "Okeetee" corn originated from a gun club in Jasper County, South Carolina, which is a 50,000 acre estate that is known for it's population of richly colored locality cornsnakes that have a vivid orange background color, marked with deep, bold red blotches(saddles), that also tend to have wide dark black borders.
So therefore, the name is generally given to any cornsnakes with this certain "look", and doesn't have to necessarily COME from that location, although these locality specific animals are highly coveted and revered by cornsnake people in the hobby.
In many people's opinion, snake's that display this richly colored look, but do not actually come from the location in Jasper County, are usually best referred to as "Okeetee phase" cornsnakes, while the animals that are literally from this location, or are offspring from parents of Jasper County, are actually true locality Okeetee corns.
There has been much argument and debate for decades regarding this very thing in regards to the name, and what animals actually deserve the name, and which ones don't. This will no doubt be an ongoing thing for the rest of eternity,.....as a matter of fact, your post and mine will likely spawn a huge quagmire of debated posts as well!. It basically happens every time this topic comes up...LOL!
Anyway, in my opinion,....it's the "look" of the snake that constitutes the name Okeetee "PHASE", then if it's of actual locality lineage, it's termed a "locality Okeetee" animal.
hope that helps you to understand this thing a bit better.
best regards, ~Doug
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"Better to be silent and thought a fool, than to open mouth and remove any doubt!"