284 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. IX. 



figure, but the blue coloration of the male on the forewing is less 

 extensive and darker, and has anteriorly an irregular edge ; the shape 

 of the hindwing is also different, in A. asopia the anal angle is quite 

 round, in A. adala it is produced to a point so that the abdominal and 

 outer margins together form an exact right angle. The markings and 

 coloration of the underside are very close indeed to A. arvina, He wit- 

 son, and A. aboe, de NiceVille (ante, No. 17). 



Described from a single pair in my collection, the male from the 

 Ataran Valley, the female from the Daunat Range. 



19. ARHOPALA ADULANS, n. sp., PI. 0, Figs. 28, £ ; 29, 9. 



Habitat : Ataran Valley, Tenasserim, Burma. 



Expanse : $, 1*5 to 1*6 ; 9, 17 inches. 



Description : Male. Upperside, both wings rich shining deep blue, 

 distinctly turning to purple in some lights. Forewing with the costa 

 up to the costal nervure, the apex widely, the outer margin somewhat 

 widely and decreasingly black, the inner edge of this black area is 

 irregular as it is penetrated by the blue ground-colour beyond the end 

 of the discoidal cell and again towards the apex of the wing. Hindwing 

 with the costa, outer, and abdominal margins broadly black. Under- 

 side, both wings glossy dark lilac-brown, all the spots darker, dull 

 reddish-brown, outwardly defined by a fine pale violet line. Forewing 

 with the inner margin broadly up to the median nervure and first 

 median nervule whitish ; a small oval spot towards the base, a larger 

 one at the middle, and a still larger elongated one closing the discoidal 

 cell ; a rather large transverse spot in the submedian interspace placed 

 at the point where the first median nervule arises ; another oblique 

 spot at the base of the first median interspace ; a discal outwardly 

 curved continuous unbroken chain of seven spots, the anteriormost and 

 posteriormost of these spots of equal size, smaller than the rest ; a 

 prominent submarginal fascia divided by a pale broken line from a 

 marginal series of oval spots. Hindwing with four small round spots 

 across the base ; a subcostal spot ; a spot posterior to the last in the 

 middle of the cell ; a large spot posterior again to the latter ; an 

 elongated spot at the end of the cell ; a small spot posterior to this ; the 

 discal band much dislocated, the two anteriormost spots shifted inwardly 



