What's the name of this caterpillar?
I think it might be a species of Fritillary. Below is a picture of a Marsh Fritillary.


Marsh fritillary. Source: Butterfly Conservation.org

I do not think it is a woolly bear or giant leopard moth, just because the hairs seems too sparse for a woolly bear and it lacks the distinct red striping of the giant leopard moth caterpillar. It does not seem to be arctiinae to me.