An infestation by the grape cane girdler, Ampeloglypter ater LeConte, near Niagara-on-the-Lake, Ontario, was reported to this laboratory on 2 June 1965. The species was identified by Mr. W. J. Brown, Taxonomic Section, Entomology Research Institute, Canada Department of Agriculture, Ottawa, from 17 aduit specimens reared or recovered from infested shoots collected in the vinevard between 11 August and 5 September 1965. There are no published records of the occurrence of this species in Canada, though two specimens collectcd at Point Pelee, Ontario, host unspecified, are in the Canadian National Collection (Brown, in lit.). The species occurs in many of the eastern United States (Brooks 1909, Whitcomb 1956).