NEW INDO-MALATAN BUTTERFLIES. 343 



also has many characters in common with my oherthuri, but is quite 

 distinct from either. P. oherthuri is to be figured in the next part to 

 be issued of M. Oberthiir's 'Etudes d'Entomologie/ of which 

 I have seen a proof of the plates, and both species will be figured 

 in my ' Butterflies from China, Japan, and Corea.' " As, therefore^ 

 M. harrietcB is, as far as I can tell from the descriptions of 

 the allied species and the figures so far published, distinct 

 from all of them, I will not attempt a comparative description ; 

 when figures of all the species af e available, it will be easy for any 

 one to distinguish between them for himself. In the sequel it 

 will, I think, probably be found that M. Oberthiir is right, and 

 that all these species will be found to be but geographical races of 

 one species, which grade almost imperceptibly one into the other as 

 do the Indian forms of the genus. 



Described from a single pair obtainedby Mr. P. A. Holler's native 

 collectors in Bhutan, but the exact locality is unknown. Mr. 

 H. J. Elwes records a single specimen of Pieris ( Aporia) agathon, 

 Gray, from the interior towards Bhutan,* this being the only other 

 species of the genus hitherto known from this region. Mr. Moller 

 obtained at the same time as he received the M. harrietcB a single 

 male of M. agathon, so the two species (which belong to difl'erent 

 groups of the genus) appear to meet and occur together here. 



Subfamily PapilionijST^. 



17. PAPILIO (AcJiilUdes) DISCORDIA, n. sp., PI. I, Fig. 2, $ . 



Habitat : Gayces and Battak mountains, Sumatra. 



Expanse : ^ , 5"0 inches. 



Description : Male. Uppeeside, both ivings deep black. Forewing 

 thickly and evenly sprinkled throughout with rich green-coloured 

 scales. Cilia black. Rindwing similarly sprinked, but with the area 

 between the large blue-green outer-discal patch and the three sub- 

 marginal green lunules free from the green sprinkling, as also is the 

 costalarea as far as the first subcostal nervule; a large outer-discal 

 patch rich emerald-green in some lights and cobalt-blue in others, its 

 inner edge almost straight, slightly bowed inwards towards the base 



* Trans. Bnt. Soc., Loud., 1888, p. 415, n. 374. 

 45 



