First Canadian records of genera Mulsant & Rey and Casey from New Brunswick: description of two new species and new provincial distribution records (Coleoptera, Staphylinidae, Aleocharinae).

Two genera, Mulsant & Rey and Casey (both Aleocharinae: Oxypodini: Meoticina), are recorded from New Brunswick and Canada for the first time. The following species are newly recorded or described as new in New Brunswick and Canada: (Casey); Klimaszewski & Webster, .; and Klimaszewski & Webster, The genera are defined and the key for species identification is provided. Color habitus images and black and white images of the median lobe of the aedeagus, spermatheca, tergite, and sternite VIII are provided for all species occurring in Canada, and (Erichson), the type species of genus , and Casey, the type species of . New or additional habitat data are provided for the species treated in this contribution. The following new synonym is established: Casey, 1911 (NC), is a synonym of Casey, 1894 (NC).