H. ()Nh5L0W 



2"):] 



>lour>value8 



of hjbrid 



parents 



[1-3: M] 



tl-5:l-4] 



80 TOO 



No. of insects 



Fig. 23. (Cf. Fig. 11.) Curve showing the distribution of the orange antl yellow colour-values of family 



*17 E, hybrid {lutea x gross.) x hybrid {lutea x (jross.). 

 The following variations occur in certain insects, whose position alon^ the ba.>^e line of the curve is 



indicated by the accompanying numbers. 

 niprocincta (segments 3, 4 and 5) o60 niffrocincta a \ ^ 4, %^, 1»7 



