COLOR AND COLORATION 203 
a little later (though before marccllus has disappeared) ; and 
ajax is the summer form; as the season advances the varieties 
become successively larger, with longer tails to the hind wings. 
Iphiclides ajax, form telamonides, on flower of button bush. Reduced. 
Now Edwards submitted chrysalides of the summer form 
ajax to cold and thereby obtained, in the same summer, butter- 
flies with the form of ajax but the markings of the spring 
lente Aeiey 
Phyciodes tharos; A, spring form, marcia; B, summer form, morpheus; under sur- 
faces. Natural size. 
form telamonides. Some of the chrysalides, however, lasted 
over until the next spring and then gave felamonides. 
