84 ENTOMOLOGICAL NEWS. [Feb., '13 



Trichoptera Collected Under Unusual Conditions. 

 On November 30, 1912, I started at an early hour with two friend? 

 for a long "hike" in the mountains near Salt Lake City. At nine 

 o'clock A. M., when we had reached a point several miles up a nearby 

 canyon and were well up on the mountain side, we were forced to 

 turn back by a snowstorm. By the time we had reached the bottom of 

 the canyon and the road which led along the stream, the ground was 

 well covered with fresh snow. As there had been snow and cold 

 weather for some weeks at that altitude (estimated at 6000 ft.) I was 

 not engaged in looking for imagos of Trichoptera, and was much sur- 

 prised to discover a live one crawling on the snow. It was bottled 

 as a record specimen for late transformation, but another and another 

 was found as we walked along the road until, in a short time, twelve 

 individuals were picked up. As it was still snowing heavily and bade 

 fair to continue all day I decided not to stop to collect more, but to 

 count those seen in passing. A total of thirty-three individuals was 

 thus recorded. All were fresh, as if just emerged, and all were of a 

 single species, Platyphylax designates Walk. I have previously taken 

 single specimens at irregular times, but none so late as this. The ma- 

 jority of the imagos emerge in May and June in Wisconsin, but the 

 time is less regular in the mountain regions, where they emerge at 

 later and later dates as the altitude is greater, Emergence of num- 

 bers at so late a date at any altitude in this climate is to me inex- 

 plicable. On arrival at the laboratory it was discovered that but nine 

 of the individuals were in the bottle, wet gloves and chilled fingers 

 having doubtless been responsible for some loss while collecting. 

 These nine specimens are all of one sex, all being females. CHAS. T. 

 VORHIES, University of Utah, Salt Lake City, Utah. 



The 1912 Swarm of Aletia argillacea (Lepid.). 



It may be of some interest to have recorded that our annual visit 

 of swarms of Aletia (Alabama) argillacea was not omitted the present 

 season. 



During the week ending October 12, the moth was marvelously 

 conspicuous in this neighborhood. Thursday, October 10, I was riding 

 in a trolley car on a North and South line and there were literally 

 hundreds of argillacea on the windows on the West side of the car, 

 while but few were to be seen on its East side. This would seem to 

 indicate that the flight was from the West. The fact that all speci- 

 mens were in excellent condition, as if they had just emerged, makes 

 one reluctant to believe that their flight could possibly have been alt 

 the way from the cotton fields. 



They were more or less abundant in this vicinity for several days 

 afterwards. I took them both at a light-trap and at sugar. Many 



