BUTTERFLIES OF MONTANA. 63 



clouded with, fuscous, the under side of a primaries red toward the 

 base, buff on the apical area; the sub-apical and the upper marginal spots 

 well silvered; the hind wings with the inner two-thirds more or less 

 deeply ferruginous, a little mottled with buff, very rarely encroached upon 

 by the dark color of the inner area, except occasionally near the angle 

 (Holland). 



Early Stages Undescribed. 



Distribution Found in Oregon, Washington, Montana, southern por- 

 tions of British Columbia and Vancouver's Island. Specimens in the 

 University of Montana collection from Flathead lake by Elrod, and from 

 Tobacco Root Mountains by Douglass. The specimens show the under 

 side of lighter color than from Vancouver, but with the characteristic 

 heavy black markings. 



THE ELECTA SILVER-SPOT. 

 Argynnis electa, Edwards. 



Butterfly Expanse, 2.00 to 2.25 inches, 51 to 64 mm. The male is 

 dull-reddish fulvous on the upper side. The black markings are narrow. 

 The base of both wings is slightly obscured. On the under side the fore 

 wings are pale cinnamon-red, mottled on the disk with a little buff. The 

 sub-marginal band is buff, quite narrow, and often invaded by the ground 

 color of the inner area. The silvery spots are usually very well marked 

 and distinct, though in a few instances the silvery color is somewhat 

 obscured. The female has the black markings a little heavier than the 

 male; otherwise there is but little difference in the sexes (Holland). 



Early Stages Unknown. 



Distribution Among the mountains of Montana and Colorado. Hol- 

 land says it is often confounded with atlantis, but is wholly distinct, 

 smaller in size, the fore wings relatively broader, and the markings not 

 so dark on the upper surface. We have not taken it. 



THE MOUNTAIN SILVER-SPOT. 

 Argynnis atlantis, Edwards. Fig. 53. 



Fig. 53. Argynnis atlantis, upper and lower surfaces. 



