From the ANNALS AND MAGAZINE OP NATURAL HISTORY, 

 Ser. 6. Vol. xx., August 1897. 



Revision of the Pierine Butterflies of the Genus Delias. 

 By A. G. BUTLER, Ph.D. &c., Senior Assistant-Keeper, 

 Zoological Department, British Museum. 



As recently as 1893 Hitter von Mitis essayed a revision of 

 this genus in the German ' Iris/ pp. 100-153 ; he, however, 

 overlooked two or three described forms, and his material 

 evidently was far from rich enough to enable him to form a 



