Vol. XXV] ENTOMOLOGICAL NEWS 341 



ning of mating, it was 3 P. M. ; in the other case it began at 

 3.45 P. M. In both cases the male held his wings horizontal 

 and expanded, the female had hers vertical and folded together. 

 At the end of ten minutes the male released his hold of the 

 female and at the same instant folded his wings together into 

 the vertical position. The female, losing her attachment by her 

 abdomen to the male, assumed in both cases a position about 

 half an inch below the male resting on the same twig or rock 

 on which he was. So the two remained for about four minutes. 

 In the first case male and female then flew away at about the 

 same instant, but not together, she to begin egg-laying. In the 

 second case the female flew six inches or so away and began 

 egg-laying while the male remained for at least ten minutes on 

 the same spot (projecting rock) on which the pairing had oc- 

 curred. In the case of June 27th, after pairing the male flew 

 away leaving the female resting on the leaf which both had 

 occupied. 



No pellucida were observed pairing in June and the males 

 of this species were less numerous than those of inopinata. On 

 July 30, 1909, after some hours' watching, I saw a male pel- 

 lucida and a female fly to a dead branch on the bank or side of 

 the railroad cutting just west of the farther waterfall and 

 about twenty feet above the tracks. There was no doubt that 

 they were pairing, so it was highly desirable to capture them 

 both. The steep bank, was composed of reddish soil, loose 

 stones and soft rock, and was wet from the rains. I climbed 

 up as far as the steepness permitted, but the distance was still 

 too great for the length of my net stick. After two attempts 

 to lengthen it with branches, which chanced to be lying there, 

 but which broke under the weight of the net, the umbrella was 

 utilized for this purpose. Again I climbed the bank, but the 

 soft earth gave way and collector, net and umbrella slid swiftly 

 and separately to the railroad tracks. A second attempt had the 

 same result. A third, made more cautiously, was so successful 

 that the net was thrown over the accommodating pair which 

 had lingered for at least ten minutes on the same branch and 

 by gently dragging the net down over the bank I at last got the 

 insects safe into my hands. Then it was that I realized for the 



