Intra-puparial Development in Sarcophagidae (Diptera)

The chronology of the intra-pupal development in Peckia intermutans and Peckia lambens was described based on one thousand, one hundred and twenty-five pupae, being two hundred and seventy of P. intermutans and eight hundred and fifty-five of P. lambens. The pupae were fixed in Carnoy's solution for forty-eighty hours at intervals of three hours to complete the first twenty-four hours and after six hours until the emergence of the first adults. Two moments were observed during the pupation process, the first one was larval-pupal apolysis which is the process of separating the last larval cuticle from the epidermis pre-pupae. The second one involved the following phases: (a) the Crytocephalic pupa; (b) the Phanerocephalic pupa and (c) the Pharate adult, the longest phase of the whole development.