IX 



occur (Fiir. 



S E X 



97 



26). This liuliiolor \ariclv _i.s_ rcccssi\'c 



to the normal form, and the work of Doncaster and 



RaynoT ITas shown tlial it conforms to the t\'pc 

 of scx-HmitlxI iTnTcntance characteristic of birds. 

 Ill connccFion with the currant moth there is a 



Fk;. 26. 



A/'inxas i^rossuiaria/a, the common currant moth, and (on tlic ri.;lit) it-, paler 



liicticolor variety. 



further point of interest. Lacticolor occurs wild ns 

 a rare v ariety, but in Great Britain it has never 

 been recorded north of Lancashire. Nevertheless 

 grossulariata females from Scotland, when paired 

 with lacticolor males, c^ive onl\' ^^yossulariata males 

 and Idcticolor females. M\en where lacticolor lias 

 never been found wild, i^ioss/ilariata females are 

 nevertheless hetero/.s'G^ous. 



H 



