PIERIS RAP.E. 



49 



appears at the end of the summer the markings are usually 

 much more developed ; indeed, a specimen is recorded as 

 having been taken in Scotland of a uniform brownish- 

 black colour on both surfaces of all the wings. Again, 





PIERIS RAP/E. 



the individuals of the second brood are often very much 

 smaller than those of the vernal one, specimens (formerly 

 named P. metro) being sometimes taken scarcely sur- 

 passing the Small Heath (Cosnonympha pamphilus) in size, 

 while some individuals of the earlier brood almost equal 

 ordinary specimens of P. brassiccz. 



