IN THE FIELD 203 



in the forenoon, and most of them had left the next day. 

 It is very probable that they winter in the South, in the 

 adult state, migrate North in spring, and return to the 

 South in autumn. 



OUTLINE FOR LESSON 



Adult. Upper surface of wings tawny red, veins black, 

 black border of wings, containing two rows of white spots ; 

 under side paler than the upper. 



FIG. 41. MONARCH BUTTKRFLY. Anosia plexippus. 



Somewhat reduced. After Comstock. By permission of the Comstock 



Publishing Company. 



Eggs placed on lower side of milkweed leaves, about one- 

 sixteenth of an inch long ; first white, then yellow, finally, 

 dull gray. 



The larva, or caterpillar, hatches in about a week, first 

 eats its eggshell, is about one and three-fourths inches long 

 when mature; head yellowish, body marked with transverse 

 stripes of black, yellow, and white; two black horns pointing 

 backward and two pointing forward. 



The chrysalis is about an inch long, bright green, dotted 

 with gold, a band of golden dots extending more than half 

 around the body. It will probably be easiest for teachers 



