(τὰ Διπολίεια sc. ἱερά; tà Dipolíea hierá, also Dipolia/Διπόλια), an Attic festival for Zeus Polieus, central to which was the sacrifice of a bull (flight ritual of the Bouphonia). The Greeks derived the aetiological explanation for this from the myth of Diomus, a priest of Zeus. The dipolieia were celebrated in high summer on the 14th of the month of Skirophorion; they were no longer customary in the Hellenistic period.
W. Burkert, Homo necans (Engl. edition), 1983, 136-143
H. W. P…