Progressive melanism 071 the Riviera. 165 



14 pupated between Oct. 22 and Nov. 5 ; emerged Nov. 30, 30, 

 Dec. 2, 5, 5, 7, 8, 8, 11, 12, 12, 16, 17, 23. 



6 pupated Nov. 16-30 ; emerged Dec. 28, Jan. 1, 2, 2, 2, 5. 

 5 „ Dec. 1-23 ; „ Jan. 9, 10, 15, 17, 21. 



It would appear that four to six weeks is therefore the 

 duration of the pupal period. 



The prolonged period during which the moths emerged 

 is remarkable, and may be shown by the actual dates of 

 emergence, or by a census of specimens still in larval state 

 at different dates. All spun up within a week or two of 

 the end of April 1905. 



The first moths emerged August 26, 2 ; 27, 1. 



When there still remained one pupa and one active larva. 

 A census of the asphodel feeders only from Taormina 

 showed : 



The parasites from which H. hyerana suffered at Taor- 

 mina differed entirely from its liability in this respect at 

 Hyeres. At Hyeres it seemed quite immune, except from 

 the attack of the larva of Xanthandrus comtus, a parasite 

 in a broad sense, but not in the sense we usually mean in 

 regard to insects, the larva of the fly hunting that of the 



