NYMPHALIDiE. 
237 
strikingly marked creature. Its body is humped, and rough horns 
are placed on the forward part of the body. Its colors are brown, 
white and green, dark at either end, but spotted and variegated in 
such a way that the insect is difficult to see while feeding, or at rest 
Limenitis. Hybrid. Female. 
on its food plant, the oak, wild cherry or willow, and looks not unlike 
that of Limenitis disippus ; so much so that a person can never be 
sure when he finds one (particularly as both species live on much the 
Larva of Limenitis Ursula. 
same plants), which butterfly it will eventually make. There is 
frequently a good deal of variation in these larvae, even when full 
grown, some specimens being chocolate brown, and almost black 
toward the head and tail, while others are light green, with a white 
band over the back, and a brown head and tail. Each of the last 
brood of the season, while the caterpillars are very minute, makes a 
silk lined tube enclosed in a small leaf at the end of a twig. This 
