Explanation of Plate XXXIII. 



17. Papilio hachus boAihus, Feld., ^ (under i^ide). Peru (Kaden 

 Collection). Godman-Salvin Collection. 



Heterocera (IIypsida:). 



18. Pericojns hydra, But!., $ . Hope Collectioii. 



19. Pericopis hijdra, Butl., (^ (under side). Ecuador. The 

 figure represents the type of the species. Hope Collection. 



I 



