1907 



ENTOMOLOGICAL SOCIETY. 



15 



plants with wliicli they are associated, as well as birds and other members 

 of the animal kingdom. You have a comfortable, convenient and well 

 equipped museum, and also the use" of the extensive collections and valuable 

 library of our Society. With such opportunities what should you not 

 achieve? The College you are attending, is in many ways the very best of 

 its kind in America or in the world. Think of this and remember it. It is 

 an easy matter for the men gathered together under its shadow to honour 

 their alma mater. May it be always their highest ambition to honour her 

 and to be an honour to her. 



CONFERENCE ON FRUIT-TREE INSECTS. 



The main pests discussed were the Fruit-tree Bark Beetle or Shot-hole 

 Borer, the Codling-worm, the Oyster-shell Scale and the Woolly Aphis. 



Mr. L. Caesar, of the Ontario Agricultural College, opened the discussion 

 on the first named insect by relating some observations he had made on its 

 ravages in the Niagara district. His account was as follows : 



Fig. 1. — Scolytus ruguloms : a, adult beetle ; h, same in profile ; c, pupa ; d, larva — all 

 magnified about 10 times. (U. S. Dep't. of Agriculture). 



Fig. 2. — Work of Scolytus rugu- 

 losus in twig of apple — natural 

 size. (U. S. Dep't. of Agri- 

 culture). 



a h 



Fig. 3. — Galleries of Scolytus rugulosus 

 on twig under bark ; a, a, main gal- 

 leries ; b, b, side or larval galleries ; 

 c, c, pupal cells — natural size — (after 

 Katzeburg, from U. S. Dep't. of Agri- 

 culture'). 



