GENUS PAMPHILA 241 



Colorado is a mountain butterfly, widely scattered over a large 

 territory. The female is variable; this example here figured is a 

 very softly colored one, that does not show^ the stigma and spots 

 on the upper side so much as some do; the key of the species is 

 the underside of hind wing, it is griseous-green, with white, 

 squarish spots, well connected together except at the angle of 

 the spots where the line of spots is cut above the outer spot. 



422. Pamphila Idaho. Not elsewhere illustrated. 

 Plate XXXI ; Figures 422, b, c. 



Fig. 422, Male, Helena, Mont., June, 1890; Author. 



b. Female, Western Oregon, August, 1892; Author. 



c, Female, underside. Western Oregon, August, 



1892; Author. 

 Idaho has essentially the same markings, but of a much lighter 

 color, being a light-yellow both above and beneath ; it is called 

 "the yellow Colorado." The spots of underside of hind wing are 

 smaller and less contrasty. In this group the white spots of 

 underside form the best key to the various species, but in this 

 species the clear light-yellow of the male is also a good point. 



423. Pamphila California, n. s. Not elsewhere illustrated. 

 Plate XXXI ; Figures 423, b, c. 



Fig. 423, Male, Southern California, May 20, 1896; 

 Author. 



b. Female, Southern California, May 20, 1896; 



Author. 



c, Female, underside. Southern California, May 20, 



1896 ; Author. 



Eixpanse, i.i to 1.4 inch; dusky-fulvous; stigma of the male 

 broad, cut ; female stigma broken, obsolete, only the apical part 

 present ; no spots on hind wing. Underside about the same color 

 as female upper side ; three or four indistinct apical points ; hind 

 wing darker ; a very small silver angular comma, and two to five 

 silver-white spots in a line, not connected except the two outer 

 ones are usually joined together to form one, and one or two or 

 three smaller silver spots, each smaller than the preceding, all in 

 a line at right angles to the body. 



I have named this species California, to conform with the system 

 customary in this comma group, and because it is found here in 



