250 The Inheritance of Wing Colour in Lepidoptera 



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Fig. 20. (Cf, Fig. 7.) Curve showing the distribution of the orange and yellow colour-values of family 

 '10'15^ , hybrid {luteax gross.) xlutea. Parents missing. 



The following variations occur in certain insects, whose position along the base line of the curve is 



indicated by the accompanying numbers. 



r (^ (^2, 4, 5, 14, 20, 23, 24, 25, 27, 28, 30, nigricostata ^ ^ 19, 20, 23, 34, 36 



lacticolor i 31, 33, 34, 35, 36, 38, 30 



I $ $ 3, 6, 18, 26, 29, 42, 50, 51, 52, 53 

 ( c? (?9. 11, 19> 20, 23, 27, 28, 39, 46, 48, 49 

 fulvapicata {551,6,10,14,17,18,3 



/ 051, 10, 15, 47 

 // ^c? 13, 37,41 



-hH-^^S, $45' 

 semiviolacea^Q 

 A. gross, (type) ^12, $ $8, 22 

 '^ Bred by Dr Doncaster. 



36, 43, 45, 51 



