Last Summer I found this big guy just chilling on the railing of my front door steps. A Polyphemus Moth Caterpillar. Caterpillars are bright green with yellow stripes and red and silver spots. They also have a brown “v” on their rears. They grow up to 3 1/2 inches long.
They are quite a remarkable species and so very cool. I found the shape and colour of the caterpillar very fascinating and could have observed him all day long!