IIEPORT OF THE SOCIETY 27 



Scotia for the latter. On April 21st, 1922, the Destructive Insect and Pest 

 Act Advisory Board was created. The Dominion Entomologist was appointed 

 Chairman of the Board and the Chief of the Division of Foreign Pests Sup- 

 pression, Secretary. The revised regulations under the Destructive Insect and 

 Pest Act went into effect on Sept. 1st, 1923, and were published as "Acts, 

 Orders and Regulations No. 8, Dept. of Agriculture". This Division now 

 maintains an inspection service at Halifax, N. S; St. John, N. B; Quebec, Que; 

 Montreal, Que; Niagara Falls, Ont; Toronto, Ont: Windsor, Ont; Ottawa, 

 Ont; Winnipeg, Man; and Vancouver, B. C. 



Division of Systematic Entomology 



The care and development of the National Collection of Insects is the 

 chief concern of the officers of this division; taxonomic research^ therefore, 

 occupies much of their time. During the last ten years this collection 

 has been enlarged very materiall}" and excellent progress has been made 

 in classifying the various orders of insects and describing numbers of species 

 new to science, the tj-pes of w^hich are deposited in the Entomological 

 Branch. Such well known collections as the Harrington collection of Hyme- 

 noptera, the Woolly-Dod collection of Noctuidae, and the Sladen collection of 

 wild bees, have been incorporated into the National Collection. This latter 

 is undoubtedly becoming one of the most important collections of insects in 

 North America, and as a consequence is of increasing value to economic workers, 

 both federal and provincial. The following well known foreign specialists have 

 visited Ottawa, during the period covered by this paper, for the purpose of 

 examing material in the National Collection: J. M. Aldrich, H. G. Dyar, A. 

 Busck, S. A. Rohwer, A. B. Gahan, W. Barnes, T. L. Casey, J. H. Emerton, 

 W. T. M. Forbes, E. C. Van Dyke and H. J. Elwes. 



Dr. McDunnough during recent years has made a special taxonomic 

 study of the Ephemerida an insect order which has been much neglected 

 by systematists. These insects, as is well known, are of considerable eco- 

 nomic importance as food for fish. Other important studies have related 

 to the Tabanidae b}- Dr. ]\IcDunnough, the Syrphidae and other dipterous 

 groups by ]\Ir. C. H. Curran, and parasitic and other hymenoptera by ]\Ir. H. 

 L. Vierick. 



Introduction of Parasites of the Gipsy and Browntail Moths. 



The introduction into eastern Canada, of parasites of the Gips}' and Brown- 

 tail moths which was begun in 1912, was developed to a considerable extent in 

 later years, such work being largely under the immediate direction of Messrs. 

 J. D. Tothill and L. S. McLaine, assisted by Messrs. A. B. Baird, A. G. Dustan 

 and R. P. Gorham. Up to 1917, the total number of parasites of the above 



