124 THE BUTTERFLIES OF THE WEST COAST 



of any normal-colored female, but only the albino; it therefore 

 appears that the normal has become extinct, as I have predicted 

 the normal females of all Coliads will eventually become. The 

 underside of Astrae is dusted with black scales still more thickly 

 than Christina. 



Astras, like Christina, may be looked for in Eastern Washington 

 and Oregon, on the smaller mountains and foothills, in June and 

 July, as I already have specimens taken in Northeastern California 

 by Mr. Stephens in 1894. 



92. Colias Emilia. 



Plate XI ; Figures 92, b, c. 



Fig. 92, Male, Ellensburg, Wash., May 10, 1890; Author. 



b, Female, Tacoma, Wash., May 4, 1890; Author. 



c. Female, underside, Ellensburg, Wash., May 10, 



1890; Author. 



Emilia has the narrowest black margin of any Coliad that I 

 know of in the world ; some of the males have but a mere line of 

 black on the margin, much less than the example here figured. 

 Many kinds of Coliads show that the veins are free of black, and 

 cut across the black margin, showing the yellow vein through the 

 black, but the veins of Emilia carry the black and are lined with it 

 on the yellow disk and inside the margin proper, as you see by this 

 female figure b. 



All the examples that I have of Emilia were taken within the 

 State of Washington, as noted in the preceding data. 



Nothing is known as to the habits or the food-plant of Emilia. 



93. Colias Scudderi. 



Plate XI ; Figures 93, Male ; b. Yellow Female ; c. White 

 Female. 

 All these examples were taken by me in the Judith Mountains 

 of Montana, in July, 1890. I have never seen the species on the 

 West Coast, within the territory covered by this work, but in 

 some books it is said to occur in British Columbia, and therefore 

 I give the accompanying figures of it to cover the possibility of 

 such an occurrence. 



94. Colias Meadi. 



Plate XI ; Figures 94, Male ; b, Female ; from T. L. Mead. 



This butterfly is not known to fly elsewhere than in the Rocky 



Mountains of Colorado ; but I think it is likely to be found in the 



