i Suda κ 1565
Κηφισόδωρος· Ἀθηναῖος, κωμικὸς τῆς ἀρχαίας κωμῳδίας. ἔστιν αὐτοῦ τῶν δραμάτων Ἀντιλαΐς, Ἀμαζόνες, Τροφώνιος, Ὗς.
τραγῳδίας codd., κωμῳδίας Kuster.
ii Lysias 21.4
ἐπὶ δὲ Εὐκλείδου ἄρχοντος κωμῳδοῖς χορηγῶν Κηφισοδώρῳ ἐνίκων, καὶ ἀνήλωσα σὺν τῇ τῆς σκευῆς ἀναθέσει ἔκκαίδεκα μνᾶς.
Κηφισοδότῳ Χ, Κηφισοδῳρῳ Clinton.
The Suda (T 1) gives us four play titles; we have citations from three. T 2 gives a firm date of 402 for a victory, perhaps that recorded on the victors’ list for the Dionysia (T 3). Cephisodorus thus belongs to the very late fifth century and early fourth. If MacDowell is correct in his identification that three of the men (Archippus, Aristomenes, Cephisodorus) named in the violation of the Mysteries in 415 (T 4) were comic poets, then Cephisodorus was absent from Athens from 415 to c. 405 and may not have begun his comic career until after his return. In the case of Cephisodorus this identification is made less likely than the others by the very common occurrence of the name and the fact that the Cephisodorus of the Mysteries was a metic (resident alien).Testimonia
i Cephisodorus: of Athens, poet of Old Comedy.1 His plays include Antilaïs, Amazons, Trophonius, The Sow.
ii In the archonship of Euclides [403/2] I was the victorious chorēgus in comedy for Cephisodorus. Along with the dedication of the equipment I spent sixteen minas.