60 Dr. A. G. Butler on the Old- World 



I have seen no extreme dry type : the wet form is larger 

 than in T. harina, the blackish outer border extending to 

 the secondaries even in the males, where it runs from the 

 apex to beyond the third median branch, and in the females 

 sometimes to beyond the first branch ; the costal margin in 

 this form is also much less arched than in T. harina : the 

 intermediate form is normal. 



6. Terias butyrosa. 



Terias butyrosa, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. xv. p. 396 

 (1875). 



Aru Islands. 



I have only seen the dry-season form of this Terias and 

 therefore have not sufficient evidence on which to conclude 

 that it is a race of T. harina ; it differs from the dry-season 

 form of that species in the more uniform width and con- 

 tinuous character of the blackish border to the primaries. 



T. Candida group. 



The species of this group do not appear to exhibit any 

 appreciable seasonal characters; they also differ from the 

 T. harina group in the fact that the females are not very 

 variable in the same species : white is the characteristic 

 colouring of the upper surface in all the species excepting 

 those of the Solomon group, which have yellow females. 



7. Terias virgo. 



Terias virgo, Wallace, Trans. Ent. Soc. ser. 3, vol. iv. p. 328 (1867). 

 Aru Islands. 



8. Terias puella. 



Xanthidia puella, Boisduval, Voy. de 1'Astr., Le*p. p. 60, pi. ii. fig. 8 

 (1832). 



Probably throughout the Halmaheira group; we have it 

 from Waigiou, Batchian, Ternate, and Morty. 



9. Terias papuana, sp. n. 



Differs from the two preceding species in the more regular 

 and slightly more concave inner edging of the black outer 

 border to the wings, which runs farther back on the costa of 

 the primaries ; in the majority of the males this border is 

 wider than in either T. virgo or T. puella, and in the females 

 it is invariably wider than in T. virgo : the expanse of wings 

 varies considerably, 39 to 54 millimetres. 



From Mysol through New Guinea to Cape York. 



