Abstract The Nitidulidae (sap beetles) and Kateretidae (short-winged flower beetles) from New Brunswick are surveyed. Forty-six species have now been recorded in the province, twenty-nine of which are newly recorded in New Brunswick. Epuraea obliquus Hatch, is removed from New Brunswick's faunal list. The distribution and bionomics of newly recorded species is summarized. The New Brunswick fauna consist of 33 Nearctic species, four Holarctic species, and nine adventive species. Historical early dates of detection of all nine adventive species found in the province are provided.