The questien asked by Mr. Slingerland in his very interesting paper in the Can. Ent., XXVII, p. 301, is in great part answered by himself. I think he shows very conclusively that subgothica, Haw., is correctly used for our American species, and has given us a very full statement of the evidence upon which he bases his conclusions, thus removing the matter from the domain of unsupported opinion. From the nature of the case, and in the absence of Haworth's actual type specimen, the proof cannot be absolute; but until something more definite is supplied, I think the conclusions of the paper on the identity of subgothica, must be accepted. As to the synonymy, I think Mr. Slingerland is also correct. I have not found the A. O. U. Code clear on this matter, though it is as to genera in the same case; but, after consulting Dr. C. Hart Merriam, a recognized authority on questions of nomenclature, I am assured that Guenée's name jaculifera must sink as a synonym.