I’ve been trying to locate these fellows in my Virginia Creeper vine that hangs over my terrace table for weeks. They are huge, but also hard to find in the foliage and they do make a tremendous mess, pooping on my glass table. So, our achievement was actually finding two of them in one day. I never have been able to figure out what kind of caterpillar they are, but we’ve had some great adventures over the past 13 years. One day I’ll publish pics I took of the year I established a caterpillar triage unit. Does anyone know what those “crystals” growing out of its head are? The above guy looks like something out of Alice in Wonderland!