( xii ) 



Cethosia chrysippe ranges from the Moluccas to the Trobriand 

 Islands. In " Seitz " Fruhstorfer enumerates twenty-one 

 geographical forms. We now add a race from Biak. 



Symbrenthia hippoclus is a common species distributed from 

 India to New Britain and represented by thirty-five forms. 

 The Biak form is nearest hylaeus from Dutch New Guinea. 



Mynes aureodiscus is apparently a race of the species 

 geqffroyi, which occurs over New Guinea, Queensland, and Aru 

 Islands. This species is dimorphic in both sexes, the other 

 form being black on the hind-wing below. This dark form 

 was received together with the yellow form, but we can find 

 no difference between it and doryca from Dutch New Guinea. 

 The form here described resembles semperi from Queensland. 



Charaxes latona is found in the Sulla Islands, N. Moluccas, 

 Aru Islands, New Guinea and satellite islands, and Bismarck 

 Islands. The very distinct Biak form is only represented by 

 a single $ specimen. It approximates to diana described by 

 Rothschild from New Hanover. 



Hypolimnas pithoeka occurs in New Guinea, the Bismarck 

 Islands, and the Solomons. The Biak form is sufficiently 

 distinct. ' 



The widely distributed Doleschallia bisaltide is represented 

 on Biak by a dark form. 



Doleschallia noorna is confined to New Guinea and a few 

 adjacent islands. A sufficiently distinct race inhabits Biak 

 and does not differ in the neighbouring island of Mefor. 



Neptis shepherdi occurs in Queensland, New Guinea, Aru 

 Islands, Waigeu, Obi, and Sulla Islands. The Biak form, 

 which we call greyalis, is nearest dainia from (late) German 

 New Guinea. 



The common Neptis venilia is represented on Biak by a 

 sufficiently distinct form. A very similar form occurs in 

 Dutch New Guinea and on the islands in Geelvink Bay, but is 

 not noticed by Fruhstorfer in his treatment of the genus in 

 " Seitz." 



Euthalia aeropus is found in the Sulla Islands, the Moluccas, 

 New Guinea and satellite islands, and Bismarck Islands. The 

 Biak race is more like the New Guinea form. The $ is poly- 

 morphic, but we have only received the brown form. 



