. Annual report. Entomological Society of Ontario; Insect pests; Insects. 23 purposes many of our trees are already grown, and our citizens are continually paying more attention to the transplanting of shade trees. The streets in our towns and villages are being beautified and uhaded by elm, maple, basswood, etc., and it is to be hoped that the habit of setting out trees by property holders will become more universal. The maple is undoubtedly one of the most important of the trees usually selected for shade. It is hardy and vigorous in a large degree, and its various species have each distinct
. Annual report. Entomological Society of Ontario; Insect pests; Insects. 23 purposes many of our trees are already grown, and our citizens are continually paying more attention to the transplanting of shade trees. The streets in our towns and villages are being beautified and uhaded by elm, maple, basswood, etc., and it is to be hoped that the habit of setting out trees by property holders will become more universal. The maple is undoubtedly one of the most important of the trees usually selected for shade. It is hardy and vigorous in a large degree, and its various species have each distinctive excel- lencies. Its fine shapely green leaf is even recognized as the emblem of our nationality. As a shade tree for our cities and towns it is probably unrivalled, its vitality and robust growth making it exceedingly valuable for street planting. In our magnificent forests it is one of the chief trees, and a " sugar bush " is an object of pride and pleasure (as well as profit) to its possessor. I have thought, therefore, that an enumeration of the insect enemies of the different maples may be of assistance to those who wish to plant or preserve them. Fortunately they are not so badly infested as the oak, hickory, pine, and some other species, although the following list will show that they have quite enough enemies. In the annual report for 1872, Mr. E. Baynes Reed published a paper describing eight injurious species—Nos. 9, 10, 12, 15, 16, 18, 19, 37, of present paper, and notes on these and other species have appeared since from time to time in the reports, and in the Canadian Entomologist. In 1881 the United States Entomological Commission published (Bulletin No. 7) an exceedingly valuable report by Dr. Packard on insects injurious to forest and shape trees. In that report thirty-seven species of insects are enumerated as infesting maples. I am able in the present paper to double this list, and had my time permitted me to do justice to the subject, and more
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