Believe me, it's just as confusing for everybody else. Today I tried to confirm something Roy said regarding the currently recognized
Thamnophis elegans subspecies and I only ended up even more confused.
Thamnophis elegans only has two subspecies at the moment;
T. e. elegans and
T. e. vagrans. Goodbye,
arizonae,
hueyi,
terrestris and
vascotanneri.

I'd imagine it's even harder to keep up with changes in taxonomy, when you're used to using the old names.