170 Mr. E. B. Poulton. Colour-relation between tlie [Feb. 4, 



Additional notes und general 

 conclusions. 



Evidently in the direction of yellow. 



More strongly than the last in the direc- 

 tion of yellow. 



Strongly in the direction of yellow. 





1 ^ 



o 



rH 



O i> rH 



CO 

 rH 



Colour of larva?. 



•Avoipi 









rH . 



rH 



•8^tpauiJ8;ui[ 

 qsiAioip^ 





<N 



o 



rH 



rjt CD rH 



~ i 



•a^-Bypaaua^ui 



CO 



CO 





rH . . 



rH 



•a^ipauuta^ui 

 ' TORAl 

























Dates. 



1885 

 1885 



Totals 



1885 



1885 



1884 

 1885 



Totals 



Nature of 



Breeding 

 experi- 

 ments 

 Observa- 

 tions in 

 the field 



Breeding 

 experi- 

 ments 



Breeding 

 experi- 

 ments 

 Observa- 

 tions in 

 the field 



Size of 

 leaves. 



Generally 

 large, but 



varying, 

 rather 



narrow 



c 

 P 





Small and 

 narrow 



Description 

 of under 



side3 

 of leaves. 



The whole 

 effect is 



green, but 



a whitish 

 "bloom " is 



present. 

 Smooth and 



downless 



Ditto, 

 without the 

 bloom 



Like S. tri- 

 andra, only 

 the "bloom" 

 is bluish - 

 white 



Food-plant. 



Salix tri- 

 andra 



S. triandra 

 (without 

 bloom) 



1 



Salix 

 hahylonica 



