250 LYCAINID/E. ARHOPALA. 
in Cachar. Assam is the only locality from which I have seen specimens of this species, 
though it has been recorded from Nepal and Java. 
805. Arhopala singla, de N. 
Satadra singla, de Nicéville, Journ. A. S. B., vol. liv, pt. 2, p. 119, pl. ii, figs. 8, male ; 7, female (1885). 
Hapsirat: Sikkim, 
EXPANSE: $, 1°8; 2, 1°8 to 2°0 inches. 
DESCRIPTION: “ MALE.’ UPPERSIDE, both wings very dark shining purple, with a 
somewhat broad black margin. forewrng witha distinct black disco-cellular mark, and another 
black mark beyond, being a tooth-like projection from the black costa into the purple discal 
area, neither of these black marks are shewn in the figure. UNDERSIDE, forewing brown, 
paler towards the inner margin, widely washed at the apex with pale violet, and bearing the 
following dark brown spots with pale margins :—a circular one towards the base of the cell, a 
large oval one just beyond its middle, and a quadrate one closing it, above the last is a small 
spot on the costa, one filling the base of the interspace between the first and second median 
nervules, and a large one below and within the latter reaching the submedian nervure; a 
discal chain of seven spots, broken and inclined inwards at the fifth spot, a submarginal 
lunular band not reaching the apex, the margin dark brown. Sindzwing pale brown, all but 
the bands and spots powdered with pale violet-whitish, giving it an unusual and peculiar 
appearance, The spots and bands arranged as in other species of this group, somewhat 
indistinct. The anal lobe rufous-brown (not black as in many species) ; in one specimen a 
few metallic-green scales above and beyond it. Zaz/ of moderate length, pale brown, tipped 
with white. FEMALE. UPPERSIDE, forewing witha large patch of bluish-violet in the middle. 
Hindwing with some traces of this colour in the cell and just below it, UNDERSIDE, doth 
wings with the ground-colour and markings paler throughout than in the male.” 
‘‘Near to Satadra[= Arhofala] bupola, Hewitson, many specimens of both sexes of 
which species, also from Sikkim, are now before me. The male of 5S. singla may be distin- 
guished at once from that species by the much narrower and more produced forewing, by the 
colour of the upperside being of a much darker shade of purple, and both sexes by the 
violet-whitish powdering of the hindwing on the underside. Allied also to S. si/hetensis, 
Hewitson, a female specimen of which from the typical locality is in the Indian Museum, 
Calcutta. On the upperside of the latter the violet-blue colour is far more extensive and 
lighter in shade, the underside is also uniform bright brown throughout, not powdered with 
violet-white as in S. séagla.” (de Nicéviile, \. c.) 
The above remarks comparing S, sing/a to S, bupola are incorrect, the latter species being, 
I am now confident, the female of A, exmolphus, Cramer, and what I thought to be the male 
of A. bufola some other species. Iam unable to say how the female of A. singla is to be 
distinguished from that of A. ‘esta. Mr. Otto Méller possesses two males of A. singla 
taken in April, and eighteen females, which may belong to either A.singla or A. teesta. Talso 
possess two males and nine females. I have no doubt whatever that 4. s¢zgla and 
A. teesta represent two perfectly distinct species, as the males can be distinguished at a glance 
by the coloration of the upperside ; but, as the undersides of the two species are alike, Ido 
not know how their respective females from Sikkim are to be recognised. As A. stmgla is only 
known from Sikkim, females from other localities may safely be placed under 4. ¢eesta. 
806. Arhopala teesta, de N. (PLrateE XXVII, Fic, 197 ¢). 
Satadra teesta, de Nicéville, Journ. A. S. B., vol. lv, pt. 2, p. 253, n. 6, pl. xi, fig. 3, male (1886). j 
Hasirat: Sikkim, Sylhet, Upper Tenasserim. 
EXPANSE: 4, 18 inches, 
DESCRIPTION : ‘‘ MALE. UPPERSIDE, both wings of a very deep purple, of a deeper shade 
than in any species of the group known to me. forewing with a very narrow black marginal line. 
Hindwing with the black marginal line much broader than on the forewing ; ¢az/ black, tipped 
with white, UNDERSIDE, eth wings marked almost exactly as in S,[=A.] singla, de Nicéville.” 
