92 ANIMAL LIFE 
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. 43.—Mctamorphosis of monarch butterfly (Anosia plexippus). u, egg; 0, larva; 
e, pupa; @, imago or adult. 
common in the United States and called the monarch or 
milkweed butterfly (Anosia plevippus). The eggs (Fig. 
43, 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- 
