452 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXVI. 



lunules. Antennae with a very long, graduated club, brown above with a 

 sprinkling of white scales below ; head, frons and palpi brown above ; thorax 

 smooth with bluish-green scales ; abdomen brown. Below palpi, thorax and 

 abdomen light brownish. — Female. Like the male in the colour of the blue 

 except that it is slightly lighter and the bases of the wings are more prominently 

 greenish ; and the veins blacker ; the brown borders, however, much broader, 

 fuUy 6 mm. on the outer margin ; the black often rmining down from the costal 

 margin along the discoceUular nervules. Underside : exactly as in the male in 

 every way, the colouring aU round, perhaps, a bit lighter. Expanse : male, 

 55 mm. ; female, 60 mm. 



Swinhoe's description of the insect is as follows : — 



" Male. Upperside : dark purple-blue, shining in certain lights, coloio'ed 

 somewhat line pirithous, but brighter blue ; costal and outer, marginal line 

 black. Cilia black, tails black : a rather long tail at the end of the vein 2, slight 

 projections at the ends of all the other veins of the hind wing, more pro- 

 nounced at the ends of veins 1 and 3 than at the ends of the others. Underside : 

 grey, suffused with pinkish-brown ; the lower portion of the fore wing pale, the 

 hind w^ng darker than the fore wing, but varying much in shade ; spots and 

 bands chocolate-brown. Fore wing: with a small spot in the cell near 

 base, a larger one in the middle, four conjoined spots at the end, the third from 

 the upper end minute and sometimes absent ; a discal band of conjoined spots 

 from the costa to vein 2, increasing in size hindwards, the band slightly out- 

 wardly curved, sometimes very nearly straight down, but the middle spot 

 always a little outside the others ; all these spots and bands edged with bluish 

 white; a subterminal, indistinct, broWnband andstiU more indistinct, terminal 

 band. Hind wing with four subbasal spots, three in a row, the fourth near the 

 abdominal margin followed by two spots ; an outwardly-curved bar at the end 

 of the ceU, with dark brown edges, with two spots in an inward curve below it ; 

 a discal, outwardly-cm-ved, irregular band of spots and curves, commencing 

 on the costa with a large, brown patch composed of two squarish spots joined 

 together ; a submarginal, lunular, thick, brown line and an anteciliary, thinner 

 line, both more or less lunular, the latter edged outwardly with bluish-white 

 near the anal angle where there is a black spot on the lobe capped with bluish- 

 white ; the bands with indications of very indistinct, similar bands between 

 them ; a black terminal line. Antennae black ; palpi black above, whitish- 

 brown beneath ; head, and body blackish-brown above, grey beneath. Female. 

 Upperside : paler and brighter blue, merging into black on the outer parts ; 

 forming broad, costal and outer, marginal bands on the fore wing ; with 

 generally, a black spot at the upper end of the ceU ; hind wing with similar 

 costal and marginal bands, narrowing much in the middle of the outer margin 

 then broadening hindwards, with some blackish suffusion running up near the 

 abdominal fold which is pale. Underside : as in the male. Expanse : 55-62mm ". 



Egg. — More or less hemispherical in shape, covered with 9 rows of penta- 

 gonal cells from apex to base, 24 rows round the broadest part ; all these cells 

 with coarse walls and a short spine at each intersection ; there is one apical 

 cell ; the colour is green, spotted darker ; the walls white. B : 1 mm. ; H : 0. 

 75 mm. 



Larva. (PL II., fig. 23). — ^The shape is nearly the same as that of 

 Arhopala centaurus but slightly stouter. Head light yellow, shining, round, 

 hidden under segment 2. Segment 2 rounded in front, slightly thickened along 

 margin, somewhat constricted behind, only very slightly transversely convex ; 

 3 broader than 2, dorsoventral margin slightly flanged, dorsaUy higher than 

 segment 2 ; 4 to 10 similar to 3, each one slightly higher at the hinder margin 

 than the immediately succeeding segment ; segment 10 is perhaps the highest 



