The PhD thesis is an edition with introduction and commentary of the tragic Latin fragments concerning the myth of Medea. The different aspects of Medea in her literary development in Rom are analysed: her relations with the theme of magic; the similarities with local Goddesses (particularly the Marsic Angitia); her difficult relationship with her family; her magic power and her weakness towards love; lastly, her crimes. The tragedies are: Ennius’ Medea exul, Pacuvius’ Medus and Accius’ Medea sive Argonautae. An introduction concerns general problems; the text of the fragments is accompanied by a complete apparatus criticus; the commentary gives indications about the original context, textual and metrical problems; linguistic, phonostilisti...