404 



JOHN H. GEROULD 



TABLE 1 

 First generation showing the mutation 



* White wings. 



t Yellow wings. The male always has yellow wings. 



of blue-green individuals are equally distributed between the 

 sexes. 



In the second generation two ' blue-green' parents gave only 

 blue-green offspring (family \p) and the two heterozygous 

 'grass-green' gave both dominant and recessive varieties, though 

 in numbers too small to be of significance. 



