Spotted Apatelodes caterpillar

Description:

These Caterpillars are completly covered in wisps of hairs. Younger ones are completely white, but the older ones are a bright, almost neon, yellow. It is so bright, it is hard to miss on green foliage. A clump of long black lashes (hairs) project from behind the head on the second and third segments and another extends from near the rear. Black 'V'-shaped chevrons form a row down the length of the sides of the body. They eat the leaves of ash, oak, and maple trees. Two broods can be produced each year.

Habitat:

I found him walking along my deck rail.