Through the courtsey of Dr. Harrison G.Dyar I have had the privilege of examining and assisting in the identification of all the specimens of the family Tortricidœ collected and bred by him and his assistants during the past summer at and in the vicinity of Kaslo, B.C. A completed list of all species will be included in Dr. Dyar's comprehensive paper on his summer's work, which is in course of preparation. All of the species that appear to be unknown are described in the following paper. Prof. C.H. Fernald has very kindly read over the MSS and examined the types, and confirmed my generic determiantions, and in the case of one species made a correction, for all of which I am glad to acknowledge my obligation.