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97 



occur (Fig. 26). This lacticoloy variety is recessive 

 to the normal form, and the work of Doncaster and 

 Raynor has shown that it conforms to the type 

 of sex-Hmited inheritance characteristic of birds. 

 In connection with the currant moth there is a 



Fic:. 26. 



Abra.xas !^}Ossiilatiala, ihe Cuniruon currant iiiutli. and (un the right) its paler 

 lacticolor v.iriety. 



furtlicr point of interest. Ladicolor occurs wild as 

 a rare variety, but in Great Britain it has never 

 been recorded except in the south. Nevertheless 

 grossidariata females from Scotland, when paired 

 with ladicolor males, give only grossidariata males 

 and lacticolor females. Even where ladicolor has 

 never been found wild, grossulariata females are 

 nevertheless heterozygous. 



H 



