Green/yellow in colour, long hairs, and the head has several small yellow horns. If you have ever seen a potato grow "eyes" before planting, this caterpillar reminded me of having similar "eyes"!
Deciduous and evergreen forests. I believe that one of the host trees for this moth is the oak tree...this was found just beneath some live oaks in my yard.
I know this isn't the Imperial Moth itself but found it very interesting that such a creature could turn into such a large and beautiful moth!! I believe this caterpillar was in it final instar as it was below ground to spend the winter as a pupa when a turtle from our pond dug this up as she was digging a hole to lay eggs.