Summary of cuticle formation during the molt/intermolt cycle

(A) Secretion of ecdysial droplets.
(B) Pinocytosis and apolysis of plasma membrane.
(C) Redifferentiation of plaques and cuticulin envelope deposition.
(D) Cuticulin envelope complete and digestion of old cuticle.
(E) Secretion of inner epicuticle and bucking of cuticulin envelope.
(F) Beginning of procuticle secretion.
(G) Cuticle immediately after ecdysis.
(H) Cuticle after tanning.