Opiconsivia or Opeconsiva is an ancient Roman harvest festival that was celebrated on August 25th in honor of the Goddess Ops or Opis, the Goddess of plenty. The word “consivia” comes from the Latin word conserere, to sow. The Vestal Virgins and Flamines of Quirinus oversaw the festivities which involved a chariot race. Draft animals were crowned with flowers and allowed to take part in the festivities.
Another festival to Ops, the Opalia was held on December 19 and was associated with the storage of grain.