PERIDROMIA ARETHUSA. 161 



World. The male of the species above referred to 

 is of a deep black colour on the surface, with a silky 

 gloss, sprinkled with numerous small blue spots ; 

 the female is larger, and besides markings similar to 

 those of the male, has a broad white band in the 

 middle of each of the superior wings lying obliquely, 

 and terminating in a point. The whole of the 

 under side, in both sexes, is shining brown with a 

 very slight tinge of green ; the hinder wings with 

 ten rounded bright red spots, three near the base, 

 two on the interior edge, and five forming a row on 

 the hinder margin towards the anal angle. The 

 white band is likewise conspicuous on the under 

 side of the female, and in place of it, in the male, 

 there is a bluish interrupted oblique line ; body 

 black above and spotted with blue ; brown beneath, 

 with red spots on the breast. 



This beautiful species is a native of Brazil. 



vol. xxxi. 



