emerging 17 year periodical cicada and a discarded pupa

17year adult air allowing appear area below black calling cicada discarded dried dries dry due earlier emerged emerges exoskeleton exoskelton exuviae folds form harden hardens head instar just larval magicicada makes mature mgicicada molted molting new nymph open periodical pharaoh phase red referred remains side sometime song sound spreads stand teneral typical veined view visible white wings year