Having recently, through the kindness of Mr. W. W. Hill, the well known Lepidopterist, been able to carefully compare my type of hospitalis with a series of Agrotis perconflua Gr., I believe we have to do with a variety of this latter species differing by the black marked t. a. line, the black edging on costal region of t. p. line, the more suffused and deeper color. The insects are structurally identical, and although variation in these points is not usual (I have not met with it), yet the perfect correspondences in other points carry the conviction that in hospitalis from Lewis Co., N. Y., we have only a form of perconflua.