1 897.] ENTOMOLOGICAL NEWS. 163 



Figure 2 illustrates the condition at the end of the first year. 

 It will be noticed that the pits are yet quite shallow. 



Figure 3 illustrates the condition of the limb at the end of 

 probably the second year. Dead and fragmentary scales may 

 be found in the deepest depressions. The effect of the scale does 

 not seem to die with it, but as the limb continues to grow the 

 cavities are deepened and the abnormal development of the sur- 

 rounding tissue becomes quite pronounced. Probably the pres- 

 ence of the beak in the tissue would be sufficient to thus stunt it, 

 but this is by no means certain. 



o 



UTAH REVISITED-IDAHO AND WYOMING. 



By Prof. A. J. SNYDER. 



In vol. v, of ENT. NEWS, the author gave an account of his 

 first trip to Utah in search of Lepidoptera. In 1895 it was his 

 good fortune to revisit many of the scenes there described and 

 to continue the trip northward through Idaho and home via the 

 Yellowstone National Park. In this second trip Mr. Charles 

 Stewart, of Evanston, was my companion. 



A part of my plan was to stop in the places visited in 1893 

 long enough to secure a supply of certain species whose habitats 

 were then discovered. Chionobas clirvxus, one of the desired 

 species, is found on mountain peaks among the barren rocks at 

 elevations above 8000 feet. 



On reaching Park City, Utah, we secured conveyance for our 

 camping outfits and ourselves to a place known as Bonanza Flats. 

 Here, at an elevation said to be above 9500 feet, we made camp 

 and prepared to spend a week. We were above some snow 

 banks, and from our camp could look out and up upon numerous 

 other banks but little above us. On our way up one Alypia 

 sacra men fi was taken, a species so closely resembling Alypia 

 octomacnlata that one could easily fail to notice that the white 

 spots are six instead of eight. Next morning, with the usual 

 collecting outfit, we started up the peak nearest our tent. Just 

 before reaching the backbone of the ridge all fears that we were 

 too early for C. chryxus were allayed, and the first capture wa.s 

 made. Insect mimicry is a well-known topic in entomological 

 works, of which Chionobas chryxus furnishes another instance. 

 Its ability to alight on bare rocks within reach of one's net, drop 



