141 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XII. 



wing with an anteciliary black thread. Hlndwing with two submarginal 

 subanal black dots between the veins, and a marginal black thread. Cilia 

 of the forowing anteriorly black, posteriorly and of the hindwing white, 

 at the terminations of the veins black. Underside, hoth wings pale 

 French-grey, with all the markings of a slightly darker grey than the 

 ground-colour, and outwardly defined with a narrow white line. Fore- 

 wing with a large quadrate spot at the end of the discoidal cell ; a discal 

 series of tive rounded conjoined spots, the anteriormost spot nearer the 

 base of the wing than the others ; a submarginal lunular band, and a mar- 

 ainal series of linear spots between the veins. Hindwing with the base 

 metallic-o-reenish ; the usnal spots across the base, a large one at the end 

 of the cell, a highly irregular discal series, the marginal markings as in 

 the forewing, except that the submarginal lunular band is more deeply 

 indented and is a little further removed from the margin. Cilia of both 

 wino-s French-grey, in the hindwing bearing a black dot at the end 

 of each vein. Female. Uppeeside, hoth icings shining bluish-purple, 

 but of a much lighter shade than in the male. Foreining with the costa, 

 apes and outer margin broadly black ; a prominent wedge-shaped 

 black spot at the end of the discoidal cell, beyond which the ground- 

 colour is just touched with white. Hindwing with a narrow black 

 disco- cellular streak ; sis marginal oval black spots between the veins, 

 outwardly defined with pale blue ; a prominent anteciliary black 

 thread. Underside, both icings marked as in the male. 



Apparently nearest to C. miisina^ Snellen,* from Perak, Sumatra, 

 Java and Lombok, from the male of which (the female I have not seen) 

 it differs on the upperside of both wings in being of a still deeper plumbeous 

 colour, and on the underside in having none of the spots black, and the 

 discal series on the forewing forming a continuous chain instead of the 

 spots being placed in echelon. The markinris on the underside of 

 C. cava are highly peculiar, and are unlike those of any species of Cyaniris 

 known to me, in that they are all uniform in colour, pale French-grey, 

 none beint^ black. They are wonderfidly like those in Nacaduha 

 nelides, mihi, from N.-E. Sumatra and W. Java, vide 1. c, p, 280, n. 16, 

 pi. 0, fig. 24, male. It is also near to C. lugra, H. H. DruGe,t from 



*Vid& de Miciiville, Jouvn. Bomb. Nat. Hist. Soc, vol. ix, p. 275, n. 12, pi O, fi?;. 19, male 

 (1895). 



t Proc. Zool. Soc. Loud., 1895, p. 573, pi. xxxii, fig. 5, male. 



