380 



SOME REPRESENTATIVE INSECTS 



like that of other Hemiptera, is direct. The young hatch as 

 wingless individuals and undergo a series of molts (c/. Fig. 169, p. 

 345). They are often to be found in all stages from the newly 

 hatched young to the adult -with its fully developed wings. 



Fig. 195. — Life cycle of the Monarch butterfly, Anosia plexippus, one of the 



Order Lepidoptera. 



a, egg; 6, larva or caterpillar; c, pupa; <i, adult. (From Jordan and Kellogg, "Evolution 

 and Animal Life," copyright, 1907, by D. Appleton and Co., reprinted by permission ) 



They feed upon the plant by piercing leaves and stems with their 

 beak-Hke mouth parts and sucking the juices. 



Lepidoptera. — Among the butterflies the monarch or milk- 

 weed butterfly, Anosia plexippus (Fig. 195), is one of our common- 

 est native species. It ranges over all of North and South America 

 and has begun the invasion of other lands, particularly Western 



