LYCANIDA, ARHOPALA. 243 
**Most of the examples of this species have a nearly white spot on the middle of the costal 
margin on the underside of the hindwing as in 4. ammon, Hewitson.” ( Hewitson, 1. c. in Il. 
Diu. Lep.) Mare. Uprersipe, doth wings differ from the female only in the coloration 
of the disc being rather deeper in shade, more purple than blue. 
A common species in Sikkim, occurring in June, July, October, and December. Hewitson 
recorded it from Sylhet, but I have seen no specimen from there, though it is more than probable 
that it occurs throughout Assam. Dr. J. Anderson obtained it at Yimiki, King Island, Mergui 
Archipelago, in February ; Captain C. H. E Adamson has sent me a single female taken in May 
at Tsenbo, Upper Burma ; and Mr. Doherty obtained specimens at Myitta in the Tenasserim 
Valley in the cold weather, which he notes as agreeing perfectly with Sikkim examples. Although 
Mr. Hewitson recorded it from Singapore, Mr. Distant does not include it in his © Rhopalacera 
Malayana.” 4. adseus cannot be mistaken for any other, the broad band at the end of the 
cell from the costa to the first median nervule on the underside of the forewing, and the 
prominent whitish quadrate patch on the middle of the costa of the hindwing being unique 
characters. In addition te the long tail at the termination of the first median nervule, there 
is a short one at the termination of the second median nervule, and another at the termination 
of the submedian nervure. The shape of the hindwing is also unusual, the costa being very 
straight, and the apex acute. There is hardly any difference between the sexes, 
795. Arhopala ammon, Hewitson. 
Amblypodia ammon, Hewitson, Cat. Lycenide B. M., p. 9, n. 41, pl. v, figs. 49, 50, female (1862); Navas 
thura aanmon, Distant, Rhop. Malay., p. 272, n. 19, woodcut n. 83, female (1885). 
HasitaT: Singapore (ezitson) ; Myitta, Tenasserim Valley, Burma. 
EXPANSE: 6, 1°23 9, 1°3 inches. 
DESCRIPTION: “MALE. UPPERSIDE, 0th wings lilac-blue, the margins with a narrow 
border of black. UNDERSIDE, doth wings rufous and lilac-grey. Forewing with the band 
broken, the middle spot projecting outwards. Aindwing without a transverse band, with 
a white spot on the middle of the costal margin, the black spots at the anal angle irrorated with 
silvery-blue. FEMALE. UPPERSIDE, both wings like the male, except that the margins are 
much broader.” UNDERSIDE, doth wings like the male. (ewitson, 1. c.) 
Mr. Distant did not obtain this species in the Malay Peninsula, so probably the type 
specimens were the only ones known until lately, when Mr. Doherty obtained two males in 
the Tenasserim Valley, Burma. It is a little smaller than 4. adseus, Hewitson, both 
sexes differing from that species in having more blue coloration on the upperside and 
a single tail to the hindwing. On the underside it superficially resembles 4. adseus in 
possessing a prominent white spot on the middle of the costa of the hindwing, but all the other 
markings are a good deal different, being more annular, Mr. Doherty’s specimens are 
undoubtedly males, and have the outer black borders on the upperside of both wings as broad 
as in Hewitson’s figure, which is stated to be that of a female. Mr. Hewitson notes that the 
male of 4. ammon has these borders much narrower than in the female. There is evidently 
some confusion regarding the species ; it may hereafter be found that the Burmese form 
represents a species distinct from that from Singapore, 
796. Arhopala cnea, Hewitson. 
Amblypodia enea, Hewitson, Il. Diurn. Lep., p. 14e, n. 87, pl. iiic, fig. 55, male (1869). 
HAapsirat: Sikkim, Khasi Hills. 
EXPANSE: 6, 2, 1°55 to 1°80 inches, 
DESCRIPTION: “MALE, UPPERSIDE, J0th wings violet-blue, the margins dark brown, 
narrow. UNDERSIDE, doth wings rufous, with several very indistinct bands of a slightly 
darker colour. Forewing with the transverse band unbroken, and of equal breadth.” 
( Hewitson, |. c.) FEMALE. UPPERSIDE, doth wings black. Forewing with the purple colora- 
tion of a much lighter shade than in the male, and much more restricted in extent, Hindwing 
with a small patch of purple in the middle of the disc. UNDERSIDE, Joh wings as in the male 
€. 
