48 CATERPILLARS AND THEIR MOTHS 



kind of leaves to provide for each species he finds. 

 Most species will eat more than one kind of leaves. 

 Those which eat wild cherry will usually eat cultivated 

 cherry, willow, apple, plum, poplar, and sometimes 

 ash, pear, rose, tulip-tree, oak, box-elder, spiraea, and 

 maple. Those eating grape will eat woodbine and 

 the Japanese woodbine, while those eating hickory 

 will usually eat butternut and black walnut as well. 



Pao'nias excoeca'tus eats poplar, white birch, willow, 

 spiraea, wild cherry, hazel, apple, weigelia, oak, elm, 

 and hickory. 



We have found Te'lea pohjplie'mus on maple, oak, 

 poplar, willow, tulip-tree, ash, wild cherry, white 

 birch, hop-hornbeam, apple, chestnut, and twice on 

 pine and wild grape. It has been found on elm also. 



The list of food-plants of Apatelo'des torrefact'a and 

 Ilalesido'ta macula'ta would contain the names of most 

 of the common shrubs and trees, with blackberry and 

 raspberry added. 



When unknown caterpillars are brought in with no 

 food we give them a choice of all the leaves we have 

 at hand, and then supply those which they prefer. A 

 little experience shows whether a new larva is likely 

 to want leaves of trees, shrubs, vines, or of plantain, 

 dandelion, and similar plants. No hard-and-fast rules 

 for distinguishing can be given, for while sphingid 

 caterpillars usually feed on trees, vines, and shrubs, 

 some live chiefly on purslane, tomato, potato, tobacco, 

 turnips; and while many hairy caterpillars live on 

 plantain, dandelion, and the like, others live on hick- 

 ory, elm, maple, and other trees. In the same way it 

 is impossible to give one distinguishing mark for 



