The subfamily Rhizoglyphinae is a group which was reclassified by the Russian Zoologist, A. A. Zakhvatkine, in 1937. As a result of his studies he became convinced that Oudemans' 1923-1932 classification of the Diacotricha was unstable and very artificial.

An investigation of the parasites of the pest species of grasshoppers in Canada is now being carried out as a co-operative project between the Field Crop Investigations Unit of the Division of Entomology and the Parasite Laboratory of the Dominion Department of Agriculture.

Two years ago, while collecting original descriptions of the geometrid moths, the author stumbled on an apparent discrepancy in Packard's original description of Chlorosea nevadaria (Proc. Bost. Soc. Nat. Hist., 16:31, 1874), and in the later description of the same species in his Monograph (p. 378, 1876).

The following is a list of Hemiptera taken at Hudson Heights, Quebec, during the seasons of 1941 and 1942 between June 7 and September 21. Hudson Heights is located on the Ottawa River approximately nine miles west of where that river meets the St. Lawrence River, and approximately 80 miles east of Ottawa.