ON NEW AND LITTLE-KNOWN BUTTERFLIES. 287 



Raffles Museum, Singapore, but the two male '* co-types " are in my 

 collection. Besides these two specimens I possess a very extensive 

 series of A. adorea from Java, North-East Sumatra, numerous 

 localities in the Malay Peninsula and Burma, and the Khasi Hills, 

 from all of these examples it differs in all the spots of the underside 

 being much smaller and consequently better separated from one 

 another ; and in having far less metallic green irroration at the anal 

 angle of the hindwing on the underside. Arkopala ace, de Niceville,* 

 from Perak and North- East Sumatra, is another allied species, but 

 the blue coloration of the upperside is much bluer in that species, 

 there is practically no black border, and the coloration and markings 

 of the underside are quite different also. It is also allied to A. acestes^ 

 de Niceville, from Penang and Perak, but the coloration of the 

 upperside in that species is very dark purple, and there are no black 

 borders to the wings ; on the underside all the markings are very much 

 larger, and the ground-colour is glossed with purple. Lastly, the under- 

 side is very similar to that of A. bupola, Hewit3on, as figured by Hewit- 

 son on plate Supplement vii, fig. 64, 111. Diura. Lep., Lyecenidce, 

 which species I identify to be the female of A. eumolphus, Cramer, but 

 A. arama has the additional costal spot above-named, the ground-colour 

 of the underside is different, and all the markings are much smaller. 



Described from two examples from Sikkim,| one of which was 

 taken at about 4,700 feet near Kalimpong by Lieutenant-Colonel 

 C. T. Bingham ; one from Loi Maw, Katha District, Upper Burma, 

 and one from the Ataran Valley, Tenasserim, all males, in my 

 collection. They are quite constant in coloration and markings, and 

 are readily distinguishable from their allies. 



21. ARHOPALA APHA, n. sp., PL 0, Fig. 31, $. 



Habitat : Martaban, Maulmain, and Ataran Valley, all in Tenas« 

 serim, Burma. 



Expanse : #, 1*8 to 2-1 ; 9, 1*8 inches. 



Description : Male. Uppekside, both wings rich shining deep 

 bluish-purple. Forewing with the costa narrowly and the outer 



* Journ. Bomb. Nat. Hist. Soc, vol. vii, p. 329, n. 6, pi. H, fig. 13, male (1892). 



t Journ. Bomb. Nat. Hist. Soc, vol. vii, p. 330, n. 7, pi. H, fig. 14, male (1892). 



% One of these I recorded as A, adorea in Butt, of India, Burmah and Ceylon vol. iii 

 p. 238. Now that I have large series of true A. adorea, I see that that species is ' not 

 represented in my collection from Sikkim, 



