ARGYNNIS' XI. 



Under side as in male excej^t that apex and liind margin of primaries and 

 whole of secondaries are of a deejjer olivaceous, a j^aler shade of same color tinting 

 those parts that in the male are buff; the silver spots large, the outer row triangu- 

 lar, slightly edged by black above ; the spots little if at all edged by black. 



Larva unknown. 



From specimens taken by Mr. James Ridings in the mountains near Empire 

 City, Colorado, in August 1864. 



This species had been known in collections for several years prior to Mr. Ri- 

 dings' expedition, from the collecting of IMessrs Wood, Drexler, and others, and had 

 been erroneously taken for Aglaia, an European species to which it bears some re- 

 semblance. As Dr. Behr has remarked " nearly all the Californian Argynnides 

 (which includes the Rocky Mts. and Eastern sjiecies as well) belong to the type of 

 Ar/lata, which is altogether more developed and more numerously represented on 

 this continent thaniu the old world, where the tyj^e of FajjJiia takes its j)lace." 



