28 



OTHER COMMON INSECTS 



Figure 23. 



-Redheaded Wood- 

 pecker. 



such as the adult peach-tree 

 borer, look more like wasps 

 than like moths. There are 

 more harmful insects in the 

 Lepidoptera than in any other 

 order. Among the particularly 

 destructive members are the 

 insects which are commonly 

 called codling moths, gypsy 

 moths, brown tail moths, tent 

 caterpillars, cut-worms, army 

 worms, and canker worms. 

 But not all the Lepidoptera * 

 the most beautiful moths and 



are harmful. Many of 

 butterflies develop from larvae 

 that do no particular harm. Their 

 natural enemies, such as birds and 

 ichneumons (see section 21, page 

 39), keep their numbers reduced. 

 Among the more strikingly colored 

 butterflies are the black swallow- 

 tail, the larvse of which feed on 

 celery, parsley, and carrots ; and 

 the monarch or milkweed butter- 



fly- 



LABORATORY STUDY 



The adult monarch butterfly has the 

 body divided into head, thorax, and ab- 

 domen. The legs are smaller than in the 

 grasshopper, while the wings are larger. 

 The butterfly is, therefore, poorly adapted 

 for jumping, but better adapted for flying 

 than the grasshopper. Draw the entire animal. Draw wings and legs. 



Gently rub the finger on the wing, and as the dust comes off, the wing 



Figure 24. — Larva of 

 Mourning Cloak Moth. 



Gradually transforming 

 into a pupa. The cast-off 

 skeletons of the larva 

 appear in the middle row. 



1 The Chinese silkworm is a valuable member of this order. 



