458 MR. L. DE Nici:viLLE ON NEW OR [May 3, 



the cells and the fine linear discal fasciae are also much more 

 {)rominent. 



Described from specimens from Sikkim, Assam (Shillong), and 

 the Dafla Hills. I considered these specimens at first to constitute 

 a species distinct from T. acte, but Mr. Otto Miiller pointed out to 

 me that all his dated specimens with the orange underside were 

 captured in Sikkim during the rainy months, while all those with 

 brown-coloured undersides were taken in either the spring or 

 autumn, so I have but little doubt that this is another case of the 

 extensive seasonal dimorphism which takes place in many of the 

 Lycajnida; occurring in the oriental tropical and subtropical regions, 



Tajuria istroidea, u. sp. (Plate XL. fig. 3, $ .) 



Hab. Sikkim. 



Expanse. $ 1'45 inch. 



Female. Upperside : both wings deep black. Cilia greyish 

 fuscous. Fore wing with the disk and base rich blue, with hardly 

 any gloss. Hind wing with the disk and base also rich blue, out- 

 wardly nearly to the margin sprinkled with blue scales between the 

 veins ; an auteciliary fine blue line from the anal angle to the third 

 median nervule ; anal lobe rufous, with a black centre sprinkled 

 with vAhite scales ; tails black, tipped with white. Underside : 

 botJi wings rufescent or cinnamon-coloured ; cilia of the colour of 

 the ground. Fore wing with a prominent, slightly outwardly 

 curved, discal line of a deeper shade of red than the ground, out- 

 wardly defined by brilliant white, this line does not quite touch the 

 costa, and ends posteriorly at the submedian nervure ; a sub mar- 

 ginal indistinct somewhat macular fascia. Hind wing with the 

 discal band as in the fore wing, its upper portion as far as the third 

 median nervule straight, below highly zigzag, and curved upwards 

 to the abdominal margin ; the submarginal fascia as in the fore 

 wing, ending in a small round deep black spot, broadly surrounded 

 with ferruginous in the first median interspace ; (he anal lobe 

 entirely occupied by a large round deep black spot, crowned with a 

 very few greenish-silvery scales ; the area between the two spots 

 and beyond the anterior one as far as the third median nervule 

 thickly irrorated with black and white scales ; a fine black anteciliary 

 line from the anal angle to the third median nervule, defined on both 

 sides by an equally fine pure white line. 



Most nearly allied to lolaus isterof Hewitson \ from " India," but 

 diff"ering therefrom in its broader wings, the apex of the fore wing 

 less acute, the outer margin convex, the blue coloration of the 

 upperside deeper and richer in shade and confined to the basal and 

 discal areas of the wings (all these are female characters) ; the mark- 

 ings of the underside much the same, but the discal line on the fore 

 wing considerably further from the margin, rather less so on the 

 hind wing. I have described this species with some hesitation, 

 solely owing to the fact that Hewitson, in describing I. ister, seems 



' 111. Diurn. Lep., Lycanidce, p. 43. n. 13, pi. xi.x. figs. 15, 16, female {\S&b). 



