120 LEPTDOPTEEA INBICA. 



but not nearly reaching the outer margin. Hindwing with the costa and apex broadly 

 black, the outer margin rapidly decreasingly black, the rest of the wing pale blue, 

 otherwise as in the male. 



This interesting little butterfly belongs to a small but distinct group which 

 hitherto has comprised three Northern Indian species, its geographical range extending 

 from jMasuri in the Western Himalayas to Assam, viz., T. megistia, Hewitson, 

 T. yagna, Doherty, and T. istroidea, de Niceville ; from all these T. thria may be 

 known in the male in the hindwing being almost entirely cerulean- blue, the others 

 having this colour confined to a more or less wide anterior patch ; in the same way the 

 female may be known by the blue area in the hindwing on the upperside being of much 

 oreater extent and almost reaching the outer martrin, which is not the case in the three 

 alcove-named species, the coloration of the underside of T. thria agrees with that of 

 T. megistia, being orange or dull chrome-yellow. 



Described from several males in the collection of Hofrath Dr. L. Martin and my 

 own, taken in March and May, and a solitary female in Dr. Martin's collection taken 

 in July 1894, all from the Battack Mountains and from five males from the Dounat 

 Range, [Middle Tenasserim, Burma, in my own collection ; the type-specimens are from 

 Sumatra, (de Niceville.) 



Expanse of wings, $ ly% to l-j^, $ 1 ^q inches. 



Habitat. — Burma, Sumatra. 



We have not seen this species ; the figures are copies of de Niceville's figures. 



TAJURIA ISTROIDEA. 

 Plate 727, figs. 2, <J, 2a, $ , 2b, <J. 



Tajuria istroidea, de Niceville, Proc. Zool. Soc. 1887, p. 458, pi. 40, fig. 3, 9 j ^^- Journ. As. Soc. 



Bengal, 1888, p. 286, pi. 14, ^ ; id. Butt, of India, iii. p. 384, pi. 25, fig. 153, ^ (1890). 



Mackiniion and de Niceville, Journ. Bo. Nat. Hist. Soc. 1898, p. 387. 

 Tajuria teza, Swinhoe, Ann. Mag. Nat. Hist. 1899, p. 106. 



Imago. — Male. Upperside black. Foreicing without markings, uniformly black. 

 Hindwing also uniformly black, except for a glittering elongated patch of azure-blue 

 which extends from the base along the upper part of the wing, widening outwards to 

 near the apex where it is rounded, occupying the outer half of the cell, and extending 

 upwards close to the costal margin ; abdominal fold black, paling inwards and upwards ; 

 anal lobe black, with some white scaling on it ; the white continued up the outer 

 margin in a fine anteciliary line which becomes obsolete before reaching the apex ; 

 tails black, tipped with white. Cilia of both wings black, with white tips from vein 3 

 to the anal lobe. Underside rufous-brown with an ochreous tint ; very uniform in 

 colour throughout. Foreicing with a discal band of brown short lunules, outwardly 



