THE TRIBE OF THE SOVEREIGNS 195 



the boundary connecting the Banded Purple and the Red- 

 spotted Purple there are forms which resemble these two 

 species in such a way as to suggest that these are the 

 parents of the hybrid. In localities where the Viceroy 

 and the Banded Purple occur there are other forms which 

 seem to connect these two species, and in the locality 

 where the Viceroy and the Red-spotted Purple occur 

 there are still other forms which seem to suggest these as 

 the parents. So the evidence seems pretty conclusive 

 that where these butterflies overlap there are likely to be 

 occasional crosses between the species which result in 

 these natural hybrids. 



In the far Western states there are certain other species 

 of Basilarchia which take the place of the eastern form. 

 One of the most abundant of these on the Pacific Coast 

 is sometimes called Lorquin's Admiral {B. lorquini). 

 In Florida there is another species, B. floridensis, which is 

 found in the Southern states. It is the only one whose 

 coloring resembles that of the Viceroy. 



The Viceroy 



Basilarchia archippus 



The common name of this butterfly was probably given 

 it in allusion to its resemblance to the Monarch butterfly. 

 For the Monarch and the Viceroy have been closely asso- 

 ciated in the minds of many observers ever since people 

 began to study butterflies in America. These two insects 

 have become famous as the most notable examples that we 

 have of the mimicking of one butterfly by another. Ac- 

 cording to the theory which has been held by many natur- 

 alists, the Monarch is distasteful to birds and other ani- 



