Hi: A recent discussion on Leps-L regarding saddleback caterpillars and stinging hairs reminded me of a painful encounter with a flannel moth caterpillar (Family: Megalopygidae) in Tinalandia, Ecuador in 1990. Click below for story and image of a caterpillar than looks like a mammal ! http://personal.nbnet.nb.ca/mothman/sting.htm