ANIMAL STUDIES 



the grasshopper is no longer in a larval or immature condi- 

 tion, but is full grown and adult. 



For example of complete metamorphosis among insects 

 we may choose a butterfly, the large red-brown butterfly 



FIG. 147. Metamorphosis of monarch butterfly (Anosia plexippus). a, egg ; b, larva ; 

 c, pupa ; d, imago or adult. 



common in the United States and called the monarch or 

 milkweed butterfly (Anosia plexippus). The eggs (Fig. 

 147, a) of this butterfly are laid on the leaves: of various kinds 

 of milkweed (Asclepias). The larval butterfly or butterfly 

 larva or caterpillar (as the first young stage of the butter- 



