ENEMIES OF PLANTS. 



320 



niarketl with a row of white spots instead of a 

 continuous line of white, as in tin? amcricana. 

 In the colonies or masses which they form 



FIG. 119. — FOKKST 1 ENT-CATEKl'ILLARS FEEDING UPO.N KL.M LEAVES. 



when not feeding there is a more or less dis- 

 tinct \veb underneath them, but it does not form 

 a complete covering- above them, as in the 

 americana. The)" not only eat away consider- 



