Athenaios, Deipnosophistai 14.31a
Aristoxenos, in his book entitled Promiscuous Banquets, says we behave like the Poseidonians in the Tyrrhenian Gulf, who although of Greek origin, became barbarized as Tyrrhenians or Romans and changed their speech and the customs of their ancestors. But they observe one Greek festival even to this day; during this they gather together and call up from memory their ancient names and customs, and then, lamenting loudly to each other and weeping, they go away.
Diodoros Sikeliotes, Library of History 4.22.3-4
These, then, are the deeds of Heracles in the regions mentioned above. And moving on from there he came to a certain rock in the country of the people of Poseidonia, where the myths relate that a peculiar and marvelous thing once took place. There was, that is, among the natives of the region a certain hunter, the fame of whom had gone abroad because of his brave exploits in hunting. On former occasions it had been his practice to dedicate to Artemis the heads and feet of the animals he secured and to nail them to the trees, but once, when he had overpowered a huge wild boar, he said, as though in contempt of the goddess, “The head of the beast I dedicate to myself,” and bearing out his words he hung the head on a tree, and then, the atmosphere being very warm, at midday he fell asleep. And while he was thus asleep the thong broke, and the head fell down of itself upon the sleeper and killed him. And in truth there is no reason why anyone should marvel at this happening, for many actual occurrences are recorded which illustrate the vengeance this goddess takes upon the impious.