VOL. III. J BtUterjiies of the Tose^nite Valley. 239 



always to be found on open hillsides or other such warm spots. In 

 view of the fact that I have found these two butterflies together here, 

 as well as in Shasta county two years ago, it seems to me hardlv 

 possible that they are more than mere color varieties of the same 

 species. 



Argynnis leto Behr. — This handsome Argynnid was found quite 

 often. It is a strong and rapid flyer, and is quite hard to capture, 

 partly from the above cause and partly from its habit of flying 

 around the wet places of the meadows. No females were observed 

 by me on the entire trip. 



Argynnis egleis Bdv. — Only three specimens of this high mount- 

 ain form were captured. One was caught on the upper Tioga road, 

 and the other two on the Lyell fork of the Tuolumne river. It 

 strongly resembles monticola and zerene in its habits, though it is a 

 weaker butterfly, flying slower and closer to the ground. 



Argyjinis epithorcB Bdv. — This, the smallest of the Argynnidae 

 found in that region, is quite common in the open regions of the 

 high altitudes. In manner of flight this species much resembles a 

 Melitaea or even some of the species of Satyrus. 



MelitcBa palla Bdv. — Found throughout the region traveled, up 

 to moderate altitudes. 



Melitcza leanira Bdv.; Melit(za quino Behr. — Only one specimen 

 of each of these was captured. They were found July 9 on the 

 north edge of the Yosemite Valley. 



Phyciodes mylitta Edw. — Several specimens from different parts 

 of the region traveled. 



Vanessa antiopa Linn. — Several specimens observed. Most of 

 them were at medium altitudes, though one was seen at the foot of 

 Mt. Lyell at an altitude of about ten thousand feet. It ranges still 

 higher, probably. 



Pyrameis cardui Linn. — Very common, even up to high altitudes. 

 This is one of our hardiest species, being often seen on some of the 

 coldest and windiest ridges in the mountains. 



Pyrajneis carye Hbn. — Quite common, but not found at such 

 high altitudes as the preceding. 



Pyrameis hunter a Fabr. — Several of these were seen around water 

 courses in the lower valleys of the mountains. This does not ap- 

 pear to be quite as hardy a butterfly as either of the two preceding, 

 though it is found quite late in the autumn, around the bay here. 



