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This beautiful moth was discovered by professor S. I. Smith, at Norway, Maine, and described by him in the proceedings of the Boston Society of Natural History, Vol. IX., March 1865. It is nearly allied to the well knownSamia Cecropia, but differs therefrom in being slightly smaller, and in the colouration and markings, as well as in the form of the cocoon and appearance of the larva. It may, therefore, be regarded as a well established species. I have been so fortunate as to obtain a specimendoi:10.4039/ent3201-11 fatcat:p3thjfdcprf2vhrkfqztk5xjg4