1913 



ENTOMOLOGICAL SOCIETY. 



85 



the following day there were from 10,000 to 100,000 under each one of the few 

 arc lights in the village, and a good many under the little incandescent lights. Under 

 each of the arc lights the moths formed a patch about 10 feet across, where they 

 literally covered the ground. Thousands of them had heen crushed by wagons, but 

 there were also thousands and thousands of perfectly fresh specimens towards the 

 edge of the road. All the electric light poles, the neighbouring trees, shop fronts, 

 and indeed everywhere where there was light was well supplied with specimens. I took 

 about a hundred as a memento of the occasion. These moths may have heen hrought 

 up here by high winds in the upper air currents. The vast majority of the speci- 

 mens that had not been crushed looked as fresh as if they had only heen out a day, 

 so that one cannot think of them as having worked their way up by slow degrees. 

 They seem now to have disappeared, at least I have seen none since, except one that 

 I unconsciously brought home on my coat, and which has since been about the 

 house." 



In London the moths were found in greatest abundance about the C. P. E. 

 railway station. 



IXJUEIOUS INSECTS OF QUEBEC IN 1912. 

 Prof. Wm. Lochhead^ Macdonald College, Que. 



The season of 1912 was quite abnormal in Quebec on account of the large 

 rainfall in May, June, August, and September. No doubt this excessive precip- 

 itation affected to some extent the insect life, but the exact relations are difficult to 

 determine. 



Fig. 31. — Plum Curculio: 



c, larva; &, pupa; c, beetle; 



d, young fruit attacked. 



Fig. 32. — Clover-leaf Midge. 



Tent Cateepillaes. The most abundant insects of the season were the two 

 common species of Tent Caterpillars (Malocosoma americana and M. disstria). 

 They appeared in immense numbers in most districts of the province and caused 

 much injury to orchard and fruit trees, M. disstria (Forest Tent Caterpillar) being 

 the more abundant species. A disease, apparently bacterial, broke out among the 

 caterpillars ahout June 11th and killed many, the mortality being greater among 

 the caterpillars of M. americana. 



An effort was made to determine the extent of parasitism present. Ichneu- 

 mons were obtained from M. disstria, but not in sufficient numbers to cause any 

 appreciable diminution in numbers. 



In the insectary M. americana started pupating on June 8th, and M. disstria 

 on the 21st. Adults of both species about July 5th. 



