W$ Canadian (Stttoinologbt. 



VOL. XI. LONDON, ONT,, OCTOBER, 1879. N «. 10 



ANNUAL ADDRESS OE THE PRESIDENT OF THE 

 ENTOMOLOGICAL SOCIETY OF ONTARIO. 



To the Members of the Entomological Society of Ontario : 



Gentlemen,— Again it is my privilege as your retiring President to 

 address you, to draw your attention to Entomological subjects, and more 

 especially to the operations of the insect world about you and to record 

 the progress or decline of those noiseless disturbers of our peace — in- 

 jurious insects. 



The City of Ottawa being one of the great centres of our lumbering 

 interest, it seems fitting that I should on this occasion call your particular 

 attention to some of those insects most injurious to our pine forests. The 

 losses occasioned by the destructive work of borers in pine trees both 

 before and after they are cut are unfortunately too well known to those 

 interested in the lumber trade, although the sufferers may not be familiar 

 with the life histories of their enemies so as to be able to recognize them 

 in the various stages of their existence. The lumberman suffers from the 

 work of a number of destructive species, nearly all of which inflict their 

 greatest injuries during the larval stage of their existence. 



There are three families of beetles in which are included the greater 

 number of our enemies in this department. I allude to the longicorns or 

 long-horned beetles, Cerambycidoe ; the serricorn or saw-horn beetles, 

 Blip rest idee, and the cylindrical bark beetles, Scolytidce. To go over this 

 long series in detail would weary you. A brief sketch of the life history 

 of a single example in eacli family will serve as representatives of the 

 whole. 



One of the most destructive of the species included in the Ceramby- 

 cidee is a large grey beetle with very long horns, known to Entomologists 

 under the name of Monohamnuts confusor, and popularly in this district as 



