For a number of years the writer has awaited an opportunity to collect in the southeastern corner of Alberta with the expectation of finding there certain Acridids not previously recorded from Canada. That opportunity came on July 16, 1938, when the writer, accompanied by his brother, went into the Higdon Ranch, via Warner, Foremost, Orion and Manyberries and again on September 14, went into the same ranch via Havre, Wild Horse and Comrey.

For many years I have felt reasonably certain that the North American species of Hydaticus identified as stagnalis Fab. was not that species, and I have become entirely convinced on this point since I have had the opportunity of a critical examination of a series of the true stagnalis kindly sent to me by the late Dr. Alois Zimmerman of Munich.

As it may not have come to the notice of all American coleopterists, may I first point out that the correct spelling of the name for the Dytiscid genus long known as Graphoderes Thomson should be Graphoderus, and its authorship should be accredited to Aubé. The above changes should be credited to Dr. F. Guignot of Avignon, France, who in his magnificent work “Hydrocanthares de France”, (Ouvrage couronné par la Société Entomologique de France), 1931-33 points out:—I translate freely—

This paper has already received a partial introduction in a previous publication (Canadian Entomologist, LXX, 102) in which it was stated that a revision of this genus was contemplated in order to determine the status of two Eastern Canadian species. It only remains, therefore, to acknowledge the help that has been given me by the loan of specimens and in other ways, and to make a few remarks about the characters that have been utilized in the key and descriptions.