The majority of specimens on which the following descriptions are based were collected as larvae and reared to maturity in British Columbia in the Forest Insect Survey, Forest Insect Investigations. Though this procedure has certain definite advantages, it presents some difficulties in description, the adults often being darker in colour and smaller in size than those captured in flight. It was also observed that the structures of the genitalia are sometimes more delicate in reared specimens, so that single adults were, at times, difficult to associate with the descriptions and with genitalia mounts in the Canadian National Collection. Five new species, a new subspecies, and the previously unknown female of a sixth species are described in this paper. Brief notes on the biology, the distribution, and host plants of some previously recorded species have also been included.

As many Canadian entomologists are still not clear about the relationship between the recently formed Entomological Society of Canada and the regional entomological societies in Canada, I shall attempt to clarify it.

The national society will serve not as the parent of but simply as the link between the Acadian Entomological Society, the Entomological Society of Quebec, the Entomological Society of Ontario, the Entomological Society of Manitoba, the Entomological Society of British Columbia, and any others that may be established.

The ant as a factor in “facultative helotism” plays an important role in the biological conrrol of certain agricultural pests. This phenomenon was noted by Linnè in 1758 (Jones 1929; Wheeler 1910), when he observed that honeydew-producing insects such as aphids, mealybugs, and scale insects often functioned as “cows of the ants.”

The importance of this function in the biological control of homopteroas insects lies in the fact that certain species are effectively controlled by their natural enemies when ants are absent, but not when ants are present. The ant, in gathering the honeydew supplied by such homopterous insects, tends more or less automatically to protect them from their natural enemies (Huber 1810). This apparently protective effect is not limited to the honeydew-producing species hut is often extended to other phytophagous forms such as the citrus red mite, Paratetranychus citri (McGregor), (Kenyon 1935; DeBach, Fleschner, and Dietrick 1951) and diaspid scale insects (Flanders 1945) when such forms happen to be within the area of ant activity.

Good organization of a scientific paper benefits both the writer and the reader. It enables the author to develop his subject systematically and logically, and to attain his objective with greater clarity, brevity, and emphasis. It provides the reader with a plan that he can follow and so keeps him attuned throughout to the writer's thought sequence. This contributes to comfortable reading and to better communication of information—worthy objectives in any type of writing. Lack of organization leads to confusion for both writer and reader.

Apparently, the male of Cyrtolobus griseus Van Duzee (Stud. N.A. Memb. 90.16, 1908) has never been described. The following is a description of a male which is here designated the allotype. This specimen was collected in the University of Wisconsin Arboretum, Madison, July 21, 1950 from bur oak (Quercus macrocarpa Michx.). The allotype is in the author's collection.

Readers will have noted that, beginning with the January number, a better grade of paper has been adopted for the Canadian Entomologist. This step was taken in order to meet the demand for a better reproduction of photographic illustrations, in which a good deal of important detail was lost with the paper formerly used. It will we think be generally agreed that the new paper is a great improvement.

However, we should like to take this opportunity of making some general observations on the illustration of entomological papers.