ROADSIDE LIFE. 



249 



The Monarch. — The monarch, Anosia plexippus 

 (A-no'si-a plex-ip'pus), can be recognized by Fig. 220. 

 The larva feeds upon different species of milk- 

 weed. When full grown it is yellow, broadly 

 banded with black, and bears a pair of long, fleshy 

 filaments on the second thoracic segment and a 

 similar pair on the seventh abdominal' segment. 

 The chrysalis is bright green, dotted with golden 

 spots. 



The Viceroy. — The viceroy, Basilarchia archip- 

 pus {Bas-i-lar' chi-a ar-chip'pus), resembles the monarch 

 in color and markings, but can be distinguished by 

 its smaller size and by the presence of a transverse 

 black band on the hind wings (Fig. 221). 



Fig. 221. — The viceroy. 



Notwithstanding the close resemblance in ap- 

 pearance of these two insects, they belong to dif- 

 ferent subfamilies ot butterflies, the viceroy exhib- 

 iting to a wonderful degree what is known as mim- 

 icry. 



The Crescent-spots.— These are small butter- 



