Originally posted by dennie
I think you are referring to Grammostola cala.
I don't know exactly what is the deal with these spiders, but they are orange-like colored G. rosea's. People thought they were a different specie, but later they discovered that Grammostola cala also came from a Grammostola rosea eggsac. This tells that Grammostola cala is 'just' a colorform of Grammostola rosea.
I'm not really sure about this, but this is what I've read, and remembered .
Dennis