Heavy infestations of mealybug, first noticed on some large catalpa trees in Queen Victoria Park, Niagara Falls, about mid-September, 1944, and watched at intervals from then on, were found through the medium of specimens submitted by Dr. Harold Morrison, U.S. Bureau of Entomology, to be referable to the species Pseudococcus comstocki (Kuw.).

This paper is a revision of the North American species belonging to the Rhodogyne complex as they occur north of Mexico. Five genera and twelve species have been recognized from this region.

For several years experiments on codling moth control have been carried on in a large old pear orchard near Beamsville in the Niagara Peninsula, Ontario. This orchard comprises about nine acres of several varieties but predominantly Bartlett, and has been established for about 80 years. It is more or less isolated from other large pear or apple orchards.

The species described below has been standing in the collection under the name Tabanus cinctus F. for a number of years, and only after the capture of a number of the true cinctus (Blanche, Que., July 18, 1941, and Marmora, Ont., 14. VII. 1942) was the error recognized.