H. Onsu)W 



2;") I 



3olour-value 

 of hybrid 

 parent 

 [1S:0-71- 



100 

 No. of insec 



K., ., (Cf Fi.. H, Curve showin. the distribution of the orange and yellow colour-values of 

 ^"^- -'• ^ fa.nily 'IG A, hybrid {lutea x i,ros,.) x lutea. 



The following variations occur in three insects 



whose position along the base line of the curve 

 isTndicated by the accompanying numbers. 

 nujricosiata Hi I ^3 „,^,,,,„,„ . 7O (segments 2 and 3). Broad orange fascia o O 09, 72 



nigrocini: 



ta I ^ 



