138 THE BUTTERFLIES OF THE WEST COAST 



Rupestris is a mountain species, found everywhere in the higher 

 altitudes of the Northern California mountains, and extending 

 doubtless into Oregon, and along the Sierra Nevadas to the north, 

 but not far to the south, but possibly to the latitude of Lake 

 Tahoe, though I have no data extending that far south. The un- 

 derside is very rusty looking, and the spots are seldom silvered at 

 all, though occasionally a few of the apical and marginal spots 

 are slightly silvered. Rupestris is variable, and in different lo- 

 calities will bear different aspects, so as to puzzle the collector. 



132a. Argynnis Irene. 



No figure. 

 Irene is a variety, sometimes set down to Zerene, and again to 

 Rupestris, by different writers. It is that variety which has all 

 spots on underside of hind wing well silvered. Neither typical 

 Zerene nor Rupestris has silver on the spots beneath. I incline 

 to the belief that Irene is a variety of Rupestris, and so place it. 



133. Argynnis Laura. 



Plate XV; Figures 133, a, b, c, S. Cal. Mountains, June, 

 1888; Author. 

 Laura is of a reddish tint ; the dark markings are not broad, but 

 are distinctly cut, and not obsolescent. The underside is light- 

 yellowish, the spots large and well silvered, and the dark or black 

 lines and shadings seen on some other kinds are absent. The 

 species is well represented on the plate, except that the silver of the 

 underside is not brightly shown, as that shining of the silver seen 

 in nature is one of those things that cannot be caught by the 

 camera, nor shown by the illustrator's ink. 



134. Argynnis Laurina, n. v. Not elsewhere illustrated. 

 Plate XV; Figure 134, Male, taken with Laura, June 20, 



1888; Author. 

 Laurina is an unsilvered Laura. It flies with Laura, occurring 

 in both sexes, and on the upper side cannot always be dis- 

 tinguished from Laura, but on the underside both the fore and 

 the hind wings are very different, as is fairly well shown by the 

 Plate, the apices of fore wings and the margins of hind wings 

 being overlaid with a buffy color that covers up the spots and 

 markings, and the usual silver spots of hind wings are not silvered 

 at all, being flat buff, as pallid as in Adiante ; though in the female 

 a few of the apical spots will occasionally show a faint silvering. 



