164 Dr. T. A. Chapman on 



be classified as 19 marginata, 4 margimda, 10 dark (black, 

 not purple) hycrana. Their parents were a pale ^ and a 

 dark $ specimen. One or two of the marginata are of a 

 very beautiful form, hardly represented amongst the parent 

 brood, with a brilliant wash of gold round the margins of 

 the wings. A number of these specimens were rather 

 small, probably from some sort of starvation. 



From a pair of these, both dark, and both very small, I 

 obtained eggs on August 22nd. 



It may be noted as regards dates that at the end of 

 August the Sicilian moths were emerging, and on 

 September 1st a pair of these laid some eggs. The 

 Sicilian one I will, however, return to. The Hyeres (3rd 

 generation) larva? spun up chiefly in November. On the 

 1st March, 190G, on looking at the box they were in I 

 found 7 moths had emerged, all dark, and also all 

 quite spoilt (two dead). I failed to obtain eggs from 

 these. A ^ (dark) emerged on the 4th, a pale $ on the 

 5th, and 2 dark specimens on the loth. Unlike their 

 parents, these were all of good size. The dark parentage 

 did not therefore prevent a specimen of the type appearing. 

 On March 1.5th the remaining cocoons contained 9 pupse 

 and 11 larvae. I suppose this hastening forward, by which 

 a brood occupies under ten months instead of twelve, is due 

 to the warmer climate of my room, e.specially during the 

 larval period. At Hyeres I imagine the larval period is 

 from October to April, about six mouths, in my boxes it 

 takes about three. 



I may note that the eggs laid by a Sicilian moth (all 

 fertile) were counted as 108G. 



I made several efforts to observe the duration of the 

 pupa state, and have the following notes on the Sicilian 

 race. 



Pupated October 12 ; emerged November 14^ 



J) )> 1*^ ?5 u I'd 



(temperature 55°-70° ; average perhaps 63°) 

 Pupated December 23 ; emerged February 2, 1906 



14 pupated between Oct. 11 and 22 ; emerged Nov. 15, 15, 17, 18, 

 19, 19, 20, 20, 22, 22, 22, 22, 28 (one missing). 



