250 THE BUTTERFLIES OF THE WEST COAST 



Arizona forms and therefore really belong to the West Coast fauna, 

 but more to show what these foreign species look like, for com- 

 parison. Simius is found in Colorado also. The sexes of the spe- 

 cies in this genus look much alike, and these two forms will 

 suffice. 



455. Amblyscirtes Nanno. 



Plate XXXI ; Figure 455, Male, from Arizona. 

 This species in the shape of the wings and in color looks like 

 some other genus, and has, I believe, been classed elsewhere, but 

 is now included in the Genus Amblyscirtes. It is found only in 

 Arizona. 



Genus PYRGUS. 



456. Pyrgus Ericetorum. Not elsewhere illustrated. 

 Plate XXXI ; Figures 456, b, c. 



Fig. 456, Male, Southern California, April 20, 1889; 

 Author. 



b. Female, Southern California, July, 1903; Author. 



c, Female, underside. Southern California, June, 



1889; Author. 

 This is an old species, named in 1852, but is yet quite scarce 

 and little known. It is fairly widely spread ; its flight is rapid, 

 and it cannot be taken on the wing, but can be caught when at 

 water, or when hovering about the food-plant. The plant is Mal- 

 vastrum thurberi, a tall and slender bush, bearing lavender blos- 

 soms that appear sometimes before the leaves are seen. The egg 

 is white, globular, and laid on the young leaves. I have noted the 

 ovipositing of the egg in November. 



457. Pyrgus Tessellata. Not elsewhere illustrated. 

 Plate XXXI ; Figures 457, b, c. 



Fig. 457, Male, Southern California, May. 1889; Author. 



b. Female, San Joaquin Valley, June, 1888; Author. 



c, Female, underside, San Bernardino, July 20, 



1895 ; Author. 

 This little skipper, published in 1872, has never been figured, 

 except a wood-cut by French, of the male. Tessellata flies over the 

 whole United States, except New England, and the States of Ore- 

 gon, Washington, and Idaho, where Csespitalis appears to take 



