220 THE CANADIAN NATURALIST. [Vol. viii. 



August, going south-east. On June 13th swarms arrived on 

 the wing from the south or south-east, and at once began to 

 deposit eggs. The first that arrived did not remain long on the 

 ground. A second swarm arrived on the 10th of July, and 

 about two days afterwards a third lot appeared. These also 

 deposited eggs, the last remaining till the beginning of Septem- 

 ber. All crops destroyed — oats and barley. No eggs hatched in 

 autumn. Mr. Ells writes that eggs were deposited at Fort 

 Ellice as early as the 20th of June. 



Swan Lake House, N.W.T. (D. McDonald.) A few locusts 

 observed to arrive on the wing about July 10th, coming from 

 south by south-west. These appear to have deposited some eggs 

 which hatching in September produced young insects which were 

 either frozen, or took flight August first, in a direction between 

 south and east. No crops destroyed, the locusts having arrived 

 late and in small numbers. 



Manitoba Home, N. W. T. (J. Cowie, J. P.) Produced 

 here from the egg, hatching about June 9th. Left about the 

 end of July, going north. Swarms also arrived on the wing, 

 some remaining on the ground, and some passing over. From 

 the middle of June till the end of July they came with every 

 south-east wind, the latest remaining altogether, the earlier 

 swarms going north. Mr. Cowie writes: " The young before 

 taking wing marched through the settlement from S. to N., and 

 destroyed all the crops except potatoes. Some returned ou foot 

 going south, and some remained until able to fly." 



Fort Totten, Dakota. (Dr. J. B. Ferguson.) No locusts 

 hatched here. Foreign swarms appeared July 19, coming from 

 the north, and departing finally about July 22 or 23 ; going 

 southward. Little damage done to crops. No eggs deposited. 

 Dr. Ferguson writes: — The 19th of July is the date when 

 locusts first appeared here in large numbers and alighted on the 

 ground. Swarms were seen passing over before this date, but 

 no note made of the exact day. Those that came on the 19th 

 remained 3 or 4 days, and then left. It rarely happens that a 

 swarm passes without some coming down, while others already 

 here appear to rise and join them in the air. In this way even 

 after the great body of locusts has passed, considerable numbers 

 remain behind, and do not entirely disappear for from 10 to 12 

 days, and sometimes eveu longer. 



