In ancient Roman religion, the Lucaria was a festival of the grove held 19 and 21 July. The original meaning of the ritual was obscure by the time of Varro, who omits it in his list of festivals. The deity for whom it was celebrated is unknown; if a ritual for grove-clearing recorded by Cato pertains to this festival, the invocation was deliberately anonymous (Si deus, si dea). The dates of the Lucaria are recorded in the Fasti Amiterni, a calendar dating from the reign of Tiberius found at Amiternum in Sabine territory.