TRANSACTIONS 



OF 



THE ZOOLOGICAL SOCIETY 



OF LONDON. 



I. A Revision of the Amblypodia Group of Butter/lies of the Family Lyceenidoe. 

 By George T. Bethune-Bakek, F.L.S., F.Z.S., &c. 



Eeceived October 22, 1901 ; read March 4, 1902. 



[Plates I.-V.] 



THE large division of the Lyccenidce usually known as the Amblypodia group has 

 been in a more or less unsatisfactory state for many years. Hewitson was the first to 

 make any really important contribution to our knowledge of the species; but his 

 descriptions are so meagre that without his types combined with his figures (the latter 

 are not quite satisfactory without the former) they would be useless. About the same 

 time the brothers Felder, in their valuable work the ' Reise der osterreichischen 

 Fregatte Novara,' added more species to the group and adopted the generic name 

 ArhojKila given by Boisduval for the largest section thereof, recognizing that they 

 were structurally different from the genus Amblypodia. This name, however, not 

 having been diagnosed, was practically ignored until de Mceville again adopted it in 

 his ' Butterflies of India,' since then it has been coming more generally into use. 



I divide the group into six genera, viz. : Surendra, Iraota, Amblypodia, Mahathala, 

 Thaduka, and Arhopala, the last of Avhich alone contains over 200 species and 

 varieties without considering many synonyms. Mr. Moore has tried to split up these 

 into several subgenera ; but I cannot see the use of adopting them, for reasons given 

 below. When even a large number of species like this falls naturally into one 



vol. svii. — part i. No. 1. — August, 1903. b 



