Your site is wonderful. We have just moved from Southern Calif to South Carolina and would like to learn the flora and fauna here in south. I photographed this cocoon and have been watching it closely but if I miss it I would sure like to know what I missed. Thanks,
If you happen to catch the metamorphosis, you will be in for quite a treat. This is a Polyphemus Moth Cocoon. We have images of the moths on our Giant Silkworm or Saturnid Moth page. Sometimes the cocoons are suspended from branches like your photo, and sometimes they are found in leaf litter on the ground.