398 THE CANADIAN ENTOMOLOGIST. 



above the further edge of the gully and quite out of reach of my net. 

 Gradually one swung lower and lower, till by making an upward spring I 

 was able to secure it. It was a male in perfect condition. After that the 

 others mounted over the tops of the trees in the gully, where it would 

 have needed a fifty-foot pole to reach them, and I could only stand and 

 watch them till, as the dusk deepened, they gradually disappeared, but 

 where I could not see. I could only see that gradually there were fewer 

 in the group, till at last all had vanished. Mr. Winn saw none where he 

 went. I went out again a night or two afterwards with a long bamboo 

 fishing-pole, to the end of which I could attach a net, but, though the 

 evening appeared favourable, not a single moth appeared. My cousin 

 having kindly offered to look for these moths for me, I left the net and 

 killing-bottle with him, and he went out every fine evening as long as there 

 was any chance of finding them, but none were seen. The next year, 

 1903, I again went out on the 13th of July, and my cousin again hunted 

 for me, but none were seen. 



In this year Mr. Charles Stevenson's family spent some time at 

 Montreal South, between Longueuil and St. Lambert, and Mrs. Stevenson 

 discovered a locality for Thtde not far from the house where she was 

 staying, and ten specimens were taken. Learning the whereabouts of the 

 locality, I went over on the evening of July i8th, in company with Mr. 

 Winn, but none were flying. In 1904, I believe, I again tried to find 

 them, but again without success, but this year my cousin's perseverance 

 was rewarded by securing one specimen. In 1905 they were very plenti- 

 ful at Montreal South, and many were taken on different evenings by the 

 members of the Montreal Branch, the evenings on which I took them 

 being the 8th, 12th and the 15th, on which latter date they were becoming 

 ragged. The locality is a tract of land used as a pasture, but a large part 

 of it is covered by a young growth of various trees and bushes, among which 

 willow scrub is prominent. From the fact that many of the moths were 

 taken among or near the willows, it seemed probable that the larvae bored 

 in the roots of that tree, but the credit for the actual discovery belongs 

 jointly to Mr, Charles Stevenson and Mr. A. E. Norris, who went over by 

 an early boat on a Saturday afternoon and searched carefully among the 

 willows, and were each rewarded by finding a cast pupa-skin on the 

 ground among the willow roots. 



The same year Mr. Arthur Gibson discovered the species at Ottawa, 

 ^s he has interestingly told in the Ottawa Naturalist (Vol. XIX, 117), 



