101 



Parents. — These were selected from moths reared from 

 wild larvae collected at Cluny, Aberdeenshire, in the spring 

 of 1904 by Mr. Duncan. (Only three melanic specimens 

 were reared out of forty.) 



First Generation. 



Brood A: Both parents bright red (non-melanic). Off- 

 spring follow their parents. 



Brood B : Male parent dark slate (non-melanic) ; female 

 parent bright red (non-melanic) ; offspring one slate-coloured, 

 one bright red (non-melanic). 



Note. — Owing to an accident nearly the whole of Broods A 

 and B were lost. 



Brood C : Male melanic, female red. 



Offspring . 21 melanic . 32 red. 



Second Generation. 



Brood C 2 : Male melanic, female melanic. 



Residt. — Bacot . . 60 melanic . 26 red. 

 Prout . . 17 ,, 5 „ 



Gardner . . 21 ,, . 5 „ 



9 S 36 



Brood C 7 : Male melanic, female melanic. 



Result. — Bacot . . 50 melanic . 14 red. 



Newman . 8 ,, 1 ,, 



Raynor . . 22 ., 4 ,, 



80 19 



Brood C 9 : Male melanic, female melanic. 



Result. — Bacot . . 19 melanic . 8 red. 

 Prout . . 15 „ 8 „ 



34 l6 



Brood C 3 : Male red, female red. 



Result. — Bacot . . 19 red. 

 Gardner . . 10 ,, 



29 



