Recently while studying a small collection of Histeridae and Melyridae submitted to me by Mr. Ralph Hopping of the Canadian Entomological Branch, I discovered the interesting new species described below. With Col. Casey's excellent paper on the Melyridae (Coleopterological Notices VI, p. 456) at hand it becomes an easy matter to gain an understanding of the several genera. The species of this family are abundant, as proved by the many new forms which are constantly coming to hand. Two of the new species represent new genera. In studying the melyrids a moderately strong glass, or preferably a binocular microscope, should be used. It really requires much intensive study to fully appreciate and properly correlate the slight but valid characters presented by the members of this moderately large and homogeneous family.