I found a menacing looking guy eating my oak tree. He is spiny, the spines protrude from his back and sides. Black and grayish/beige. Has two horns on his head and a horn on his tail end. Any ideas what type of moth he is?
Oops, never mind, he is a variable tussock moth cat.
Here is a link that might be useful: Variable tussock moth
Aren't those moth cats the coolest looking things? I love all of their spines and hairs and colors. Too bad that they often become very plain looking (and very numerous) moths.