Oedipus the total absence of ancient descriptions or résumés – though it has been suggested that a part of Hyginus' narration of the Oedipus myth might in fact derive from Euripides' play. Some echoes of the Euripidean Oedipus have been traced also in a scene of Seneca's Oedipus (see below), in which Oedipus himself describes to Jocasta his adventure with the Sphinx. At least three other 5th century BC authors who were younger than Sophocles wrote plays about Oedipus. These include Achaeus of Eretria, Nichomachus and the elder Xenocles. The "Bibliotheca", a Roman-era mythological handbook, includes a riddle for the Sphinx,
Tragedy time of the empire, the tragedies of two playwrights survive—one is an unknown author, while the other is the Stoic philosopher Seneca. Nine of Seneca's tragedies survive, all of which are "fabula crepidata" (tragedies adapted from Greek originals); his "Phaedra", for example, was based on Euripides' "Hippolytus". Historians do not know who wrote the only extant example of the "fabula praetexta" (tragedies based on Roman subjects), "Octavia", but in former times it was mistakenly attributed to Seneca due to his appearance as a character in the tragedy. Seneca's tragedies rework those of all three of the Athenian tragic playwrights whose