Rylan found this yesterday on my green pepper plant. Paul and the boys left it there to devour my plant until I got home. I went to look for it but all I found was the top half of my plant missing. Paul went out and picked it right off. For a caterpillar of this size- about 3.5 inches- it is suprisingly hard to see. It's a Tobacco Hornworm. The moths are huge. I think this little big guy is getting close to full grown. I am not sure if we will be able to trick it into pupating in artificial conditions but we are going to try. These caterpillars burrow down into the soil a few inches. I read that some you can trick by adding a bunch of paper towels. The pupa stage is variable too. It can be as long as all winter or a few weeks.