Abstract
This is a new record of the ash bark beetle, Hylesinus varius (Olivier), traditionally known as a pest of Fraxinus (ash) and other Oleaceae species, on olive trees (Olea europaea) on Milos Island of the Cyclades Group, Greece, after an old report on Crete. Adult specimens were found in galleries of living branches during the olive fruit harvest. This new record emphasizes the need for intensified monitoring of the insect and further research to assess its dispersal and potential impact on olive production.