THE CANADIAN ENTOMOLOGIST 351 



Empoasca unicolor as an Apple Pest. By W. H. Brittain and 

 L. G. Saunders. Discusses the injuries caused by this insect, its 

 life-history and methods of control. One plate. 



Introduction of the Parasites of the Broivn Tail and Gipsy 

 Moths into Canada. By L. S. McLaine. A concise account of the 

 methods employed in collecting and rearing the three important 

 natural enemies of the Brown Tail and Gipsy Moths, viz., Apanteles 

 lacteicolor, Compsilura concinnata and Calosoma sycophanta, and 

 their introduction and liberation into the infested parts of New 

 Brunswick and Nova Scotia 



The Dropping of Apples Caused by Spraying ivith Lime- Sulphur. 

 By G. E. Sanders and A. Kelsall. A valuable paper, discussing 

 the available data on this problem, including original investiga- 

 tions on the factors which influence lime-sulphur injury in Nova 

 Scotia. 



Notes on the Biology of Lygus pratensis in Nova Scotia. By 

 W. H. Brittain and L. G. Saunders. Discusses the life-history 

 of this injurious insect, its food habits at different periods of the 

 life cycle, oviposition, injuries, etc. 



The papers dealing with general and faunistic subjects are as 

 follows : 



The Tree Hoppers of Nova Scotia. By W. H. Brittain. This 

 paper and the following one are part of a useful series of articles 

 on the insects of Nova Scotia, designed to make their identifica- 

 tion easier for the general student. Keys to the genera and species 

 are given and descriptive notes on the latter. The life-history of 

 Publilia concava, not previously known, is given in detail. Twelve 

 species are listed and are illustrated in 5 plates. 



The Locustidce of Nova Scotia. By C. B. Gooderham. Con- 

 tains keys to the subfamilies, genera and species. Six species are 

 recorded, all of which are described and five of them illustrated in 

 detail. 



Some Reasons for Studying PupcB. By Edna Mosher. A 

 suggestive paper, showing the need of more careful study of pupae 

 from various points of view, economic, taxonomic and morpho- 

 logical. 



Some Notes on the Cramhince of Nova Scotia. By E, Chesley 

 Allen. An annotated list of 21 species of these moths. 



