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Published online by Cambridge University Press: 31 May 2012
I have recently been investigating the synonymy, and the natural history generally, of the two species of geometers which are frequently confused under the above name,* and as Packard was not quite clear about the matter, it seems desribale to call attention to the true position of their American representative.
* Some of the results of my investigations may be seen it the Entomologists' Record, Vol. V., p. III, etc., London, 1894.
† I have tested this by the material in our National Museum, and by some specimens kindly sent me by Mr. H. F. Wickham, of Iowa City.