130 THE BUTTERFLIES OF THE 



-Winter form, .VmAU^E, Edw. This lias an expanse 

 of wings in the male of from 1.3 to 1.6 inches; in the 

 female, of from 1.6 to 1.8 inches. The upper surface is 

 of a bright lemon-yellow. On the fore wings an orange 

 patch extends from the hind margin to the median vein 

 or beyond, sometimes very pale, but usually decided and 

 gradually passing into the yellow beyond. 



Hind wings sometimes slightly tinted, but more often 

 without orange save the discal spot. Marginal borders 

 narrow, scarcely half as wide as in the form Keeway- 

 din. 



Under side more greenish yellow than Keewaydinj a 

 large double discal spot on the hind wings, silver, annu- 

 late with ferruginous, and placed in a patch of pink 

 ferruginous. 



In the female the orange on the fore wings is much 

 as in the male, the hind wings greenish yellow much 

 dusted over with black scales. Marginal borders narrow, 

 the border on the fore wings only partly enclosing the 

 submarginal spots, or even without trace of spots, es- 

 pecially on the -hind wings. 



This form is found only in the Southern States, more 

 distinctly marked in Texas than elsewhere : here the 

 summer form Eurytlieme flies through the summer, but 

 the forms Ariadne and Keewaydin, from chrysalides win- 

 tered over, take its place in the spring, Ariadne being the 

 first one that emerges. In the Northern States Keeway- 

 din is the winter form, while in the mountain regions 

 Keewaydin and Eurytlieme are found flying together 

 during the summer. 



Winter form, KEEWAYDIN, Edw. This may be 

 known from the typical Eurytheme by its smaller size, 



