GENUS LYC.^NA 231 



Isola has not heretofore been known to occur west of Arizona, 

 but for several years I have taken it in Southern Cahfornia. It 

 has heretofore been known as a Mexican species, having been first 

 taken near Vera Cruz, and only rarely found in Arizona along the 

 Mexican border. The key to the species is the regularly curved 

 row of large spots on underside of fore wing, and the large soli- 

 tary spot on hind wing. 



395. Lycaena Gyas. 



No figure. 

 This is apparently another Mexican species, and is named for 

 the male only, and has not been taken since the publication in 1871. 

 The description calls for "A pale violet-blue, immaculate, a fuscous 

 point near anal angle. Under side, brown, washed whitish, a 

 straight row of median spots across fore wing ; hind wing with 

 a median row of spots and faint row of marginal spots, of which 

 two near angle are distinct and blackish." 



397. Lycaena Hanno. 



Plate XXX ; Figures 397, a, b. 



Fig. 397, Male, Yuma, Arizona, May, 1893; Author. 



a, Male, underside. Yuma, Arizona, May, 1893 ; 



Author. 



b. Female, underside, Yuma, Arizona, May, 1893; 



Author. 

 This species is somewhat like the preceding, Isola, but lacks the 

 prominent row of spots which designates Isola, and the spots 

 beneath on hind wing are different ; I figure the underside of both 

 the male and the female as the spots near anal angle are diiiferent 

 in the sexes, the male having but one, while the female has two or 

 three. These spots, with the absence of prominent spots on fore 

 wing constitute the key to the species. I have taken this pretty 

 little species only at Yuma. It is a Mexican butterfly, and ranges 

 south to Central America, and Yuma is its most northern station. 



398. Lycaena Speciosa. 



No figure. 

 Speciosa is smaller than Hanno, is blue on upper side and on 

 underside of fore wing there is an angulated row of large black 

 spots, while the hind wing has no prominent spots, and only several 



