Cuterebra emasculator, Fitch.—This species was supposed by Dr. Brauer to be the same as his C. scutellaris, but an examination of Fitch's type, now the property of the National Museum, discloses the fact that it is identical with C. fontinella, Clark. When describing the hairs of the thorax as yellowish, Dr. Fitch had evidently examined them in a very bright light, under which conditions they have a deceptive yellowish appearance, but in reality are altogether black.