THE TRIBE OF THE YELLOWS 111 



surface of wings bright orange with a small black dash in 

 front of the middle of each front wing and a broad black 

 border on all the wings. In the females the borders are in- 

 terrupted at the rear. Under surface slightly brownish 

 yellow, minutely striated and clouded when exposed when 

 the butterfly alights. 



Little Sulphur {Eurema euterpe, Eurema lisa, Xanthidia 

 lisa or Terias lisa) . Expanse 1 inch. Easily known by its 

 small size and delicate structure. Upper surface of wings 

 yellow with distinct black borders. Under surface yellow 

 with indistinct spots. 



Dainty Sulphur {Nathalis iole). Expanse 1 inch. 

 Easily known by its small size and narrow yellow wings 

 with black bars across the outer angles and black bands 

 across the back border of the front wings and the front 

 border of the hind wings. 



The Nymphs 



Family Nymphalidae 



A large proportion of our most familiar butterflies 

 belongs to this family. The Fritillaries, the Angle-wings, 

 the Sovereigns, and the Emperors are tribes in which 

 practically all the species are of medium or large size. 

 The Crescent-spots include a few which are rather 

 small. 



The combinations of characters by which the Nymph 

 family is distinguished are these: Front legs dwarfed into 

 lappets; scaly antennae; veins of fore wings not swollen at 

 base; wings of normal shape, not much longer than 

 wide. Larvae cylindrical, but varying greatly in form, 



