Abstract. P. Delforge.- A pollinator for Ophrys tarquinia [Natural. belges 83 (Orchid. 15) (2002): 36-38]. Ophrys tarquinia P. Delforge 2000 is a Tuscan Euophrys, member of the Ophrys exaltata species group. Its pollination by males of Andrena (Plastandrena) tibialis (Kirby, 1802) (Hymenoptera, Apoidea, Andrenidae) is reported for the first time, and discussed.

Key-Words: Orchidaceae, genus Ophrys, sectio Euophrys, Ophrys tarquinia; Hymenoptera, Apoidea, Andrenidae, Andrena (Plastandrena) tibialis. Pollination, pseudocopulation, sexual deception. Flora and fauna of Italy, Tuscany.