1912 



ENTOMOLOGICAL SOCIETY. 



13 



entirely denuded of foliage. In early July large numbers of the moths were ob- 

 served around electric lights in Ottawa, and later in the month very many egg 

 masses were seen on apple and cherry. On one small branch of wild cherry 

 brought into the Division on July 29th there were 42 egg clusters. The egg 

 masses occurred close together; in some instances they were overlapping. During 

 the larval period I did not see a single diseased specimen, nor do the eggs wliich 



Fig. 



4. Tent Caterpillar: 

 Male Moth. 



Fig. 5. Female Moth. 



Fig. 3. American Tent Caterpillars on 

 their web; c. egg-bracelet; ; d, cocoon. 



6. Forest Tent Caterpillar: 

 moth and eggs. 



Fig. 7. Forest Tent Caterpillar. 



are now on the trees seem to be much parasitized. Mr. Sanders, of the Division, 

 collected in the middle of July many egg masses, but only a very small percentage 

 of these were parasitized by Telenomus and Trichogramma. The probability is 

 tha;t next year these Tent Caterpillars will again be present in large numbers. 



The Speuce Budworm (Tortrix fumiferana, Clemens) was again present in 

 considerable numbers in the district. It did not, however, occur over such wide- 

 spread areas as was the case in 1909 and 1910. The worst infestation which I saw 



