Every once in a while, I see one of these extra large moths. Usually they are brown in color, but this one is quite vividly colored in yellow, white, and violet. It was laying in my driveway by my Jeep when my wife spotted it, and I originally thought it was a leaf of some sort. It climbed on to the tip of my finger when I placed my hand in front of it, and I placed it on a nearby shrub. I believe it is injured, as it made no attempt to fly off, and is still sitting on the shrub. It reacts a little when touched, but other than that it remains motionless. The damaged areas on the lower edges of it's wings makes me think it was attacked by a bird. Anyone know the species?