ENEMIES OF PLANTS. 325 



disstria) are common in the United States east 

 of the Rockies. The adult form of the C. 

 americana is a rather small, rusty brown moth, 

 with oblique, pale yellow lines across the four 

 wings (Fig. 1 16). 



The eggs are laid in summer in a circular 



FIG. 115. ANTS MILKING I'l.ANT-I.ICK. 

 (After Figuir.) 



band about a twig. This band of eggs (Fig. 

 1 1 6, c] is protected from the weather by a sticky 

 substance with which the parent moth coats 

 them over. The following spring, just before 

 leaf buds open, these tiny caterpillars come 



