Appendix. 135 



Second, if there would be any change in the shape of 

 the wings, as well as in markings or coloration that is, 

 whether the shape might remain as that of Marcellus, 

 while the markings might be of Telamonides or Walshii; 

 a summer form with winter markings. Third, to ascer- 

 tain more closely than had yet been done what length of 

 exposure was required to bring about a decided change, 

 and what would be the effect of prolonging this period. 

 After the experiments with Phyciodes Tharos, which had 

 resulted in a suffusion of colour, the author hoped that 

 some similar cases might be seen in Ajax. The 

 decided changes in 1878 had been produced by eleven 

 and sixteen days' cold. In 1877, an exposure of two 

 days and three-quarters to eight days had failed to 

 produce an effect. 



From these chrysalides 1 1 perfect butterflies were ob- 

 tained, i male and 10 females. Some emerged crippled, 

 and these were rejected, as it was not possible to make 

 out the markings satisfactorily. 



From lot No. I, fourteen days came : 



1 female between Marcellus and Telamonides. 



2 females, Marcellus. 



These 2 Marcellus were pale coloured, the light parts 

 a dirty white ; the submarginal lunules on hind wings 

 were only two in number and small ; at the anal angle 

 was one large and one small red spot ; the frontal hairs 

 were very short. The first, or intermediate female, was 

 also pale black, but the light parts were more green and 

 less sordid ; there were 3 large lunules ; the anal red 

 spot was double and connected, as in Telamonides ; the 

 frontal hairs short, as in Marcellus. These are the 

 most salient points for comparing the several forms 

 of Ajax. In nature, there is much difference in shape 

 between Marcellus and Telamonides, still more between 

 Marcellus and Walshii ; and the latter may be distin- 

 guished from the other winter forms by the white tips of 



