COLIAS II. 



As to the distribution of this species, it is common in the region about San 

 Bernardino. Mr. Henry Edwards gives Santa Barbara and Santa Clara counties 

 as localities ; also Kern County. 



Writing recently, Mr. Edwards says : " C TIarford'd was taken by me first 

 near San Francisco, in Contra Costa County, which is as far to the north as I 

 have ever heard of it. Its home seems to be in the southern part of the State, 

 or rather from Santa Clara to San Bernardino." 



Mr. Edwards also says: "The descriptions of these forms were read before the 

 Academy, February 5th, 1877, but were only pubhshed in my extra advance 

 sheets. The Academy stopped its publications with the 7th volume, and are 

 only now about to renew them. My paper on Colias cannot therefore be re- 

 ferred to as being in the Proc. of Cal. Acad., though it will appear within a few 

 months in Vol. 8." 



The males of extreme Harfordii type come near the males of C. Interior, as 

 will be seen by the Plate next following. This is a smaller species, — that is, no 

 Interior are as large as the largest Harfordii, — with a much rounded apex to 

 fore wing and a rounded hind margin. The border is wider, and extends far- 

 ther along costal margin and it is deeply incurved. So that, while there is some 

 resemblance in this sex there is more divergence. But in the females, the dif- 

 ferences are emphatic. In Lderlor, the border is apical, as in the PeJidne sub- 

 group, broad at apex, gradually narrowing on the margin, ending at some dis- 

 tance above the inner angle. It is a triangular border, in fact, as distinguished 

 from a marginal border, such as Harfordii presents, and which is characteristic 

 of other sub-groups in the genus. One species cannot be mistaken for the 

 other. 



So far as relates to the ornamentation of the under side, Barbara is nearest to 

 the Eurytheme sub-group. So that the species in certain points resembles spe- 

 cies belonging to two distinct sub-groups, a fact suggestive of the descent of all 

 from a more or less remote common ancestor. 



