I04 



SMITHSONIAN INSTITUTION 



lazy disposition which corresponds to the wet season form of related 

 butterflies in India. 



These large and handsome individuals, often very common in late 

 summer in the restricted areas wherein they live, die during the 

 winter, so that in the spring only the smaller and duller individuals 

 corresponding to the Indian dry season form appear. These scatter 



A. 



• /i 



Fig. 91. — A, Buckeye {]nnonia ccvna), female, wet form; September 27. 

 1925. B, Buckeye (Junoiiia caiia), female, wet form; September 27, 1925. 

 C, Buckeye (Junonia cana), female, dry form; August i, 1927. D, Buckeye 

 (Jinionia caiia), male, dry form; September 19, 1925. 



widely, laying their eggs on the food plants everywhere. From eggs 

 laid on certain plants in bogs a new generation of the large and hand- 

 some individuals arises which, like those of the preceding year, die 

 leaving no descendants. 



Wholesale waste of the life of individuals is nature's form of life 

 insurance in regard to the species as a whole. With us these butterflies 

 each year produce a strongly marked wet season form which in the 



