GENUS PAMPHILA 243 



point of difference is the color of the spots on hind wing, white in 

 Sylvanoides, and yellowish in Columbia; the shape of the curve 

 of the spots is the same. 



Columbia is very abundant on the mountains of Southern Cali- 

 fornia, flying abundantly on the scantily-forested crests and 

 heights, and represents the more northern species, Sylvanoides, 

 although Sylvanoides itself is present, but Columbia does not go 

 far north. 



427. Pamphila Rhesus. 



No figure. 

 This is a Mexican species, which comes over the line into Ari- 

 zona, but I have never seen it, and it has little or no interest for us. 



428. Pamphila Carus. 



No figure. 

 Carus is another Mexican butterfly, which is occasionally seen 

 in Texas and Southern Arizona. 



430. Pamphila Nemorum. Not elsewhere illustrated. 

 Plate XXXI ; Figures 430, b, c. 



Fig. 430, Male, Pendleton, Oregon, July, 1891 ; Author. 



b. Female, Sisson, Cal., August, 1891 ; Author. 



c, Female, underside Southern California, May, 



1889; Author. 

 This and the next, Agricola, are in some respects similar, but 

 generally, and especially on the underside, in Nemorum the col- 

 ors are more uneven, being both lighter and darker, or contrasty ; 

 and there is a difference on the underside of fore wing, the cloudy 

 patch being strong in Nemorum and nearly absent in Agricola. 

 Nemorum is a wide flyer, and covers practically the whole coast. 



431. Pamphila Agricola. Not elsewhere illustrated. 

 Plate XXXI; Figures 431, b, c. 



Fig. 431, Male, Greenhorn Mountains, Cal., June, 1888; 

 Author. 



b. Female, Southern California, no data, 1890; 



Author. 



c. Female, underside, "Washington Terr." ; from 



W. H. Edwards, 1885. 

 This is a well-known species ; was named in France in the early 

 days of California, yet Agricola has never before been figured in 



