Temperature Experiments on two Tropical Butterflies. 459 



Conclusions. 



1. D. dorippus and H. inaria are the older forms of 

 D. chrysippus and H. misippus {diocippus) respectively. 



2. That the latter have been produced by the gradual 

 accumulation of small variations. 



3. That these small variations (intermediates) have now 

 largely died out as being no longer required. 



4. That they can be reproduced by shock (heat and 

 cold ) to the pupa. 



5. That there is nothing to show any interdependence, 

 or anything in common between the two species. 



6. That though this is so with these two species it is 

 difficult to believe that such is the case with all instances 

 of mimetic resemblance. 



7. That though no doubt the mimetic theory gives a 

 logical explanation of them, the premises on which it rests 

 have not been proved, but rather the contrary. 



Explanation of Plate XLI. 



|/ s '<. Explanation facing the Plate.] 



