The type ♀ specimen of Samia Gloveri having been presented by Mr. Strecker to the collection in the museum of which I have charge, I have most carefully compared it with the type ♀ specimen of S. columbia. I am bound to state that I cannot find any difference except the rosy color of Gloveri, and there are no charactcrs which I consider of value to separate the two species. I freely admit that the examination, however carefully made, of only two specimens, both of which are old and in poor condition, is scarcely sufficient to determine this point, but I wish to draw the attention of students who may have a larger amount of material for comparison, to the facts states, with the hope that the true relationship of these insects may be determined.