Bagworm in Puriscal
This is the Bagworm Moth in the caterpillar stage. It eats and makes a shelter that he lives in and, depending on the variety, if it's female she will eventually lay eggs inside the shelter and die there. At first I thought this was simply a caterpillar making a cocoon, but after several days of observation I saw the entire thing moved all over the plant, eating as it goes.