The paper deals with the ocurrence of domatias in hibrids of Vitaceae family. The author found domatia in 53 of 111 hibrids studied. The domatia are always in the axils of the first and second ribs, and occasionally also in ribs of others orders. The domatia found were of the types: "en touffe de poils", and "en pochette", types according to the Chevalier Classification (1941). Many of the domatia have mites in its interior.