Caterpillar - Macro Photography

Last week while in the farm, I found an insect walking majestically on top of one of our ridges. That was on a planting day and I stumbled upon it when I got to that level. It is a green caterpillar and it has some black lines on it.

It later started walking faster looking for a safe place to hide. I guess it noticed my presence or perhaps it couldn't keep up with the hot sun. I think that orange side at the front is where it uses to feed with.

What's your take on this type of insect? Ever seen this type before?