134 BUTTERFLIES 



blue spots and stripes. These are more prominent on the 

 hind wings. Under surface slaty brown with prominent 

 silver crescents on the hind wings. 



Idalia or Regal Fritillary {Argynnis idalia). Male. 

 Expanse 3 inches. Front wings fulvous brown with black 

 spots and markings. Hind wings black except at base 

 with a row of fulvous brown sub-marginal spots and an 

 inner row of whitish or bluish white spots. Female. 

 Expanse 3| inches. Similar to male except for larger size 

 and the fact that the two rows of spots on the hind wings 

 are yellowish brown. 



Great Spangled Fritillary (Argynnis cybele). Expanse 

 3 1 inches. General color of wings fulvous brown with 

 black markings on upper surface and black and silver 

 markings on under surface. The yellow band between 

 the rows of silver spots on hind wings is broad. There is 

 a distinct narrow fulvous stripe on the upper side of the 

 hind wing just inside the outer margin, and a similar 

 stripe along the margin of the front wing, more or less 

 interrupted by the veins. 



Silver -spot Fritillary (Argynnis aphrodite). Expanse 

 3 inches. Similar to the Great Spangled but a little 

 smaller, and with the buff yellow band between the rows 

 of silver spots on the lowxr surface much narrower and al^ 

 most disappearing at the rear. 



Mountain Silver-spot (Argynnis atlantis). Expanse 2 J 

 inches. Known by its smaller size and the black marginal 

 border stripe on all the wings, with no brown line dividing 

 this stripe. 



Silver-bordered Fritillary (Brenthis myrina). Expanse 

 If inches. Known by its small size and a marginal row 

 of silver spots on the under side of each of the wings, and 



