Throughout the past few years I have come across a few different large cocoons belonging to Silk Moths, who are large moths in the family Saturniidae, in the order Lepidoptera. As I encounter the cocoons I tend to look them up and try to learn something about them but eventually the individual identifications of each unique species is lost, except maybe the Cecropia. I wanted to write a short blog post, starting with the main three cocoons I encounter, helping to remember who makes which cocoons so I can better remember in the field.