Abstract. The purpose of this application, under Article 29 of the Code, is to emend the family-group name ancylini Michener, 1944 (Insecta, Hymenoptera), a junior homonym of ancylini Rafinesque, 1815 (Mollusca, Gastropoda), thereby removing the homonymy between the two names. It is proposed that the stem of the generic name Ancyla Lepeletier de Saint Fargeau, 1841, on which the hymenopteran family-group name is based, be emended to give ancylaini, while leaving the molluscan name (based on Ancylus Muller, 1774) unaltered.