242 THE BUTTERFLIES OF THE WEST COAST 



California. This is the most southern member of the comma 

 group of the West Coast Pamphilas. 



424. Pamphila Oregonia. Not elsewhere illustrated. 

 Plate XXXI ; Figures 424, b, c. 



Fig. 424, Male, Tenino, Washington, May, 1891 ; Author. 



b. Female, Northeastern California, 1894; F. Ste- 



phens. 



c, Female, underside, Sisson, Cal., July, 1891 ; 

 Author. 



Stigma narrow, broadly cut ; female stigma scarcely present ; the 

 spots on underside of hind wing are not white, hardly light, but 

 are just light enough to be visible. There are no dominant points 

 by which to identify this species, but the most peculiar one is that 

 the dusky apices of the female include the extension of the 

 stigma, so that the stigma itself is not apparent, being obscured 

 by the general duskiness of the wing. 



425. Pamphila Sylvanoides. 



Plate XXXI ; Figures 425, b, c. 



Fig. 425, Male, Truckee, Cal, June, 1892 ; Author. 



b. Female, Lake Tahoe, Cal., June, 1892 ; Author. 



c. Female, underside, "Cala.," no data, from W. H. 



Edwards, 1886. 



Sylvanoides, as I see the species, is the northern form of the 

 species, as Columbia, next following, is the southern, the two 

 being, as I believe, only slightly differing forms of the same spe- 

 cies. Compare the two series, 425, b, c, and 426, b, c, and form 

 your own opinion. 



The species Sylvanoides can be identified by the curved, almost 

 circular, row of light spots on under side of hind wing; most 

 others are angulated; these spots are never pearly-white, only 

 whitish. 



426. Pamphila Columbia. Not elsewhere illustrated. 

 Plate XXXI ; Figures 426, b, c. 



Fig. 426, Male, Southern California, June, 1885 ; Author. 



b. Female, Southern California, June, 1885 ; Author. 



c. Female, underside, Southern California, June, 



1885; Author. 

 Columbia and the preceding, Sylvanoides, are very similar and 

 can scarcely be separated by the upper side; beneath, the chief 



