754 ZOOLOGY INSECTS. 



patch n silver spot ; the upper submarginal spots well silvered ; secondaries 

 more decidedly mottled with buff ; the band still narrower. 



From 2 , 1 9, taken by H. W. Henshaw, August 21, 1874, at Rocky 

 Canon, Arizona. Edwards, I. c. 



ARGYNNIS HALCYONE, Edw. 

 Argynnis Halcyonc, EDW., Butterflies N". A., i. 



This species was found here and there toward the southern border of 

 the South Park, Colorado. A worn female probably of this species was taken 

 near Canon City, September 20, though two weeks before the frost had put 

 an end to all collecting in the mountains and South Park. 



AEGYNNIS ATLANTIS, Edw. 



Argynnis Atlantis, EDW., Butterflies N. A., i. 



A few Atlantis were taken at 7,500 and 8,000 feet elevation in Colorado 

 during June and July, both in the Platte and Arkansas valleys. This 

 species emits a powerful musky odor when pinned, a peculiarity not noticed, 

 so far as I am aware, in others of the genus. 



AEGYNNIS HESPEE1S, Edw. 

 Argynnis Hesperi-s, EDW., Butterflies N. A., i. 



A. Hcsperls appears at 7,500 feet elevation in Colorado during the latter 

 part of June ; the males much frequenting muddy spots in the road. They 

 are very wary and difficult to catch in such situations, though after an alarm 

 they frequently return to the same spot in the course of a few minutes. 

 Farther up the mountain side, both sexes may be taken at flowers, especially 

 those of the Horse-mint (Mouarda~). It was found sparingly near Fairplay, 

 at Twin Lakes, and not far from the Middle Park, on the Georgetown road; 

 but Turkey Creek Junction seemed to be the only locality where the species 

 occurred in any number. 



AEGYNNIS EDWAEDSII, Eeakirt. 



Aryynnis Edicardsii, EDW., Butterflies N. A., i. 



In Colorado, this species is quite abundant, even on the plains in the 

 immediate vicinity of water courses. Near Denver, on the banks of the 

 Platte, it appears in the latter part of May. It is found also in the mount- 



