Thalysia
θαλύσια
Thalysia (θαλύσια), a festival celebrated in honour of Dionysus and Demeter (Menand. Rhet. quoted by Meursius), or according to others of Demeter alone, as it is described by Theocritus in his seventh idyll, and by the grammarians who wrote the arguments to the same. It was held in autumn, after the harvest, to thank the gods for the benefits they had conferred upon men (Spanheim ad Callimach. Hymn. in Cer. 20 and 137; Wüstemann ad Theocrit. Idyll. 7.3).
From William Smith (ed.), Dictionary of Greek and Roman Antiquities. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.