GENUS LYC.ENA 233 



curved marginal lunules ; on hind wing are two round black basal 

 spots and a costal one, and nine dark, oblong, wavy spots, corre- 

 sponding to those on fore wing; at anal angle is a twinned jet- 

 black spot well glossed over with blue-green metallic scales, and 

 above this are two larger round black spots with metallic scales 

 on the outside only. 



This male is unique. No female is known. This type was bred 

 by me from the seed-pods of astragalus, which I was manipulating 

 for the larvje of Amyntula, and along with Amjntula I got this 

 beautiful new species. 



402. Lycaena Exilis. 



Plate XXX ; Figures 402, b, c. 



Fig. 402, Male, San Bernardino, August 12, 1889; Author. 



b. Female, San Bernardino, October 20, 1902 ; 



Author. 



c. Female, underside, San Bernardino, October 20, 



1902; Author. 

 Exilis is a tropical butterfly, not going north of latitude 35 

 degrees, or say, to Santa Barbara, thence it extends south through 

 Mexico to Central America. It is a mid-summer species, appear- 

 ing in July and flying till frost comes. In California Exilis has 

 for a larval food-plant atriplex bracteosa, a malodorous plant 

 which grows by the roadsides and along the streets in the gutters. 

 Exilis and the next species are much alike ; the key to Exilis is 

 a small white spot in the fringe of fore wings near inner angle. 



403. Lycasna Isophthalma. 

 Plate XXX ; Figures 403, b. c. 



Fig. 403, Male, Greenhorn Mountains, June, 1888; Author. 



b. Female, Greenhorn Mountains, June, 1888 ; 



Author. 



c. Female, underside, Greenhorn Mountains, June, 



1888 ; Author. 

 This little species, the smallest in the world, has not heretofore 

 been known except from Florida and the country bordering on the 

 Gulf of Mexico. It is quite a surprise, therefore, to find it on 

 the top of a mountain 8,000 feet high, in the latitude of California. 

 These examples were taken by myself; at the time of capture I 

 thought that they were Exilis, and gave them no particular atten- 

 tion, and only took a few, just for locality identification, for at 



