Apollonius
1. Of ACHARNAE, a Greek writer, the author of a work on the festivals. (Περὶ ἑορτῶν; Harpocrat. s. vv. πέανος, Πυανόψια, Χαλκεῖα; Phot. s. v. ὑδροφορία.)
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890