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Megalopyge opercularis
Wooly, translucent, maggot like. 1/2' long. The end with the horn is the rear.
I was installing a new metal roof on my shed when I saw this critter crawling up the roof. It was moving at a pretty rapid pace. There are branches of sweet gum, live oak and water oak above.
My first guess, would be probably (battered up southern flannel moth caterpillar).