100 BUTTERFLIES 



The Red-barred Sulphur is another splendid butterfly, 

 somewhat larger than the Brimstone, which is easily dis- 

 tinguished by the broad reddish bar across the upper sur- 

 face of the front wings. It is tropical but migrates rarely 

 even as far north as Indiana, Illinois, and Wisconsin. 



The Dog's-head Butterfly 



Meganostoma caesonia 



The Dog's-head butterfly furnishes one of the most re- 

 markable examples of accidental resemblance in wing 

 markings that can be found in the whole order of scale- 

 winged insects. It is comparable with the skull and cross- 

 bones on the back of the death's-head moth. In the 

 butterfly the middle of the front wings has a broad band of 

 yellow against a black margin on each side and the yellow 

 outlines make an excellent silhouette of the profile of a 

 poodle with a large black eye-spot in exactly the proper 

 place. The females are less brightly colored than the 

 males but they still show the dog's-head silhouette. 



This is a southern species, which occasionally strays 

 as far north as New York City, New Hampshire, Wiscon- 

 sin, and Iowa. The larvae feed on species of Amorpha 

 and are believed to be three-brooded in southern regions 

 where the butterfly occurs. {See platCy page 113.) 



The California Dog's-head is even more beautiful 

 than the southern species. It is remarkable for its pink 

 and purple iridescence — a characteristic which is not com- 

 mon in the butterflies of the Yellow and the White Tribes. 

 The silhouette of the Dog's head is less perfect than in 

 the more eastern species, and the yellow color tones are 



