SATYRTD^. 



219 



their delicate structure, tlieir lives are prol)ably very short. Tliere is 

 considerable vaiiation l:)oth between the sexes and l)etween individ- 

 uals of the same sex. Tlie males are generally smaller than the 



Neoiiyinpha caiitlnis. Female. 



females, and are darker in color. In the female there is usually a 

 light yellowish gray band on the upper side, whieli crosses the for- 

 ward wing about one-third from the end, and the spots on both 



Neonynipba caiiilius. Female. Under side. 



wings are encircled with yellowish gray. These differences can be 

 readily seen in the accompanying illustrations. The sizes of the eye- 

 spots in individuals of the same sex often vary in a marked degree, 

 even in specimens from the same locality. In some they show 

 scarcely more than dots on the upper side, and in otliers they are 

 large and prominent on both sides. 



The caterpillar feeds on grass. It is greenish and down}-, and 



