240 
LEPIDOPTEBA INBICA. 
Castalius clyton , Hiibner, Yerz. bek. Schmett. p. 695 (1816). 
Polyommatus clyton, Godart, Enc. Metb. ix. p. 679 (1823). 
Papilio coridon, Cramer, Pap. Exofc. iv. pi. 340, figs. C, D, E (1781). 
Castalius naxus, Hiibner, Yerz. bek. Schmett. p. 70 (1816). 
Castalius chota, Swinhoe, Proc. Zool. Soc. 1885, p. 133. 
Castalius approximates, Butler, Ann. Mag. Hat. Hist. 1886, p. 186. 
Wet-season Brood (Figs. 1, £, la, $, lb, $). 
Imago. —Male. Upperside white, densely irrorated on the basal third of both 
wings with brilliant blue scales; all the markings black. Forewing . A narrow band on 
the costa ; a fairly broad band on the outer margin; three large more or less round 
spots in an oblique row from the centre of the basal third to the costal fourth; five> 
similar spots across the disc, the first on the hinder margin near the angle and generally 
touching the outer band, the second above and touching it, but a little more inwards, 
the third somewhat outwards touching the middle of the outer band, the fourth and 
fifth oblique, touching them, but are placed a little inwards, and all are usually joined 
together. Ilindwing with the basal spots submerged in the brilliant blue scales ; costal 
band narrow, continued round the apex joining the broad outer marginal band, which 
occupies a third of the wing, leaving merely a broad transverse medial band of white; 
the inner edging of the outer black band is composed of large spots running into each 
other, and within the band there is a regular series of white lunules. Underside white, 
all the markings deep black. Forewing with a straight black streak, which first crosses 
the base of the hindwing and runs to the costa of forewing a little before the middle; 
a very large spot in the middle third, sometimes pear-shaped ; a band from the costa 
near the end of the streak to near the hinder margin a little before the angle, composed 
of large spots joined together, broken in the middle; a sub-apical band of four spots 
parallel to it, the third nearer the apex than the others, the lower three generally 
touching each other. Hindwing with a short sub-basal streak from the abdominal 
margin ; a spot outside its upper end, and close outside this a band of six spots in 
three pairs, the pairs joined together, one above the other; both wings with a sub¬ 
terminal complete row of small, round spots; on the hindwing there are also some 
black spots close inside this row, and both wings have an anticiliary row of black dots. 
Cilia white, alternated with black; a filamentous short tail to the hindwing black, 
tipped with white. Antennae black, ringed with white; head and body black above, 
white beneath. 
Female. Upperside like the male, but the outer bands are much broader and the 
spots coalesce, leaving very little of the white ground colour on either wing. Underside 
is similar to the underside of the male, but most of the spots on the forewing are joined 
together into bands. 
Expanse of wings, $ $ l T 3 -o inches. 
