LEI'IDOPTERA— NYMPHALIDAE— ARGYNNIS EURYNOME. 755 



ains at all elevations up to timber line, and continues on the wing till late 

 in August. Like many other Argynnides, the species becomes very scarce 

 after its first appearance ; in August suddenly re-appearing, the females 

 seeming fresh though never quite perfect, while the males are old and worn. 

 At this time, the females begin to lay their eggs, and do not finally 

 disappear until killed by the September frosts. 



t ARGYNNIS NEVADENSIS, Edw. 

 Aryynnis Nevadensis, Edw., Butterflies N. A., i. 



This species seems to represent A. Edivardsii on the Pacific slope of the 

 Rocky Mountains. It was originally discovered by Mr. Henry Edwards 

 near Virginia City, Nev., and subsequently brought by the expedition 

 from Southern Utah. 



ARGYNNIS MEADII, Edw. 

 Argynnis Meadii, Edw., Trans. Am. Ent. Soc., 1872. 



One specimen of this species was taken by me in Colorado at Turkey 

 Creek Junction on the 6th of June. Several specimens have been brought 

 from Montana. 



The three closely allied species, Edwardsii, Nevadensis, and Meadii, 

 seem to be related to each other in very much the same way as the eastern 

 Aphrodite, Cybele, and Atlantis. In Edivardsii, the pale submarginal band 

 below is narrower and sometimes almost obsolete, as in Aphrodite, and it ranges 

 up to greater elevations than Nevadensis, which has this band comparatively 

 broad in both sexes, as we see in Cybele. Meadii differs from either in tint, 

 especially in the female ; it is somewhat smaller, and probably, like Atlantis, 

 is exclusively confined to the mountains. The peculiar bright-green color- 

 ation of the iinder side of secondaries in Meadii, however, has no parallel 

 among our fritillaries. 



ARGYNNIS EURYNOME, Edw. 

 Argynnis Eurynome, Edw., Trans. Am. Ent. Soc., 1S72. 



A. Eurynome was brought by the expedition from Twin Lakes, 1873. 

 I found my first specimens, July 6, at Fairplay. After this, the species 

 became quite abundant. It was taken in all parts of the South Park, on 

 the Continental Divide, and in the Middle Park. A single specimen was 



