210 The Ottawa Naturalist. [Jan. 



The Peach Bark-borer was also studied the same year and new 

 facts recorded regarding the Hfe-history. 



In 1895 the Joint-worm which attacks wheat was investi- 

 gated, and valuable information was obtained on the habits of 

 this enemy of this important cereal. The Cottony Grass Scale 

 was also studied the same year, as was also the New York Plum 

 Scale . 



Mention of the Wheat-stem Maggot in Canada first appeared 

 in his 1896 report when an outbreak which occurred in the North- 

 west was studied. The same year the first record of the Apple 

 Maggot in Canada was made. 



In 1897 much study was given to the San Jose Scale, which 

 had gained a firm foothold in certain of the western counties of 

 Ontario. A lengthy article appears in his report for that year. 



The Rocky Mountain Locust was given special study in 

 1898 when the insect did much damage in southern Manitoba. 



The Hessian Fly wrought serious injury in the fall wheat 

 fields of Ontario, and the spring wheat fields of Manitoba in 1899, 

 and called for special investigation. The same year the Destruc- 

 tive Pea Aphis made its first appearance in Canada, as did also 

 the Asparagus Beetles. 



The Greenhouse Leaf-tyer was also studied in 1899 and 1900 

 and the life-history has since been published. 



One of the most remarkable outbreaks of an injurious insect 

 which has ever been recorded in Canada occurred in 1900, when 

 the Variegated Cutworm appeared in British Columbia. Original 

 notes on the life-history appear in his annual report for that year, 

 as also on the Spotted Cutworm w^hich did much damage in 

 Ontario. 



In 1901 original observations on the life-history of the Vari- 

 able Cutworm were published and a more complete article describ- 

 ing in detail the various larval stages appeared in the Canadian 

 Entomologist for November, 1902, Notes are also given in his 

 1901 report on Semiophora youngii, a new enemy of conifers. 



The Sugar Beet Webworm was studied in 1903 owing to the 

 damage it did in Manitoba. Attention was also given to the White- 

 marked Tussock Moth, which has done so much harm to shade 

 trees in many Canadian cities. 



During 1905 another new pest made its appearance in east- 

 ern Canada in destructive numbers and the common name. "The 

 Spined Rustic" was given to it by Dr. Fletcher. The full life- 

 history was worked out and published. 



The first Canadian nests containing caterpillars of the 

 Brown- tail Moth were received by Dr. Fletcher in 1906, and dur- 

 ing the summer the insect was studied at the Central Experi- 

 mental Farm, and a lengthy article on it was prepared and pub- 



