.'', 





a 







d 





. 



>: 



; ; 





m 



n 



." 

 - 

 - 



PLATE 59. Color adaptation in pupas of Pieris rapes and Vanessa urticce. [After POULTON.] 



a. Imago of Pieris rapes, b-k. Pu^xol Pieris rapes, l-q. Pupae of Vanessa urtica:. r. Imago 

 of Vanessa urticce. 



The color of these pupae has been determined by placing the caterpillars, when nearly ready to 

 pupate, in boxes lined with different colored papers (black, red, yellow, green). Each pupa con- 

 forms more or less closely to the color of the lining of the box in which it was formed. 



