Tomato worms eat bell peppers!

We found out the hard way, after our tomato blossoms all dropped, that tomato worms are just as happy with eating your bell peppers!  This fat guy was plucked off a pepper plant after dispatching an entire bell pepper.  He ought to be bigger!  He wouldn't eat the leaves and slice of bell pepper we left in the Habitat for him.  We're such friends of nature that we released him in the front garden, near the eggplants, because tomato worms also eat eggplants and potatoes.  He promptly buried himself under the mulch and we haven't seen him since.  Maybe he's cocooning?