1883.] MR. F. MOORE ON NEW ASIATIC LEPIDOPTERA. 531 



confined to the medial area ; a marginal row of indistinct whitish 

 double lunules. Underside with similarly disposed markings to 

 those iti P. r/anesa, those on the fore wing lining dark chocolate- 

 brown, and the interspaces between the cell-marks also of the same 

 colour : hind wing with chocolate- brown markings and basal inter- 

 spaces, the markings also mostly with pale centres. 



Expanse ly^j inch. 



Hab. Nepal (Genl. Ramsay). In coll. F. Moore. 



Panchala birmana, n. 



sp. 



Allied to P. [fcinesa. Male. Upperside with similar blue discal 

 areas, that on the fore wing being confined more to the base. 

 Underside dark brown : fore wing with similar but much darker and 

 broader markings, which have whiter borders, the interspace between 

 the second and third cell-spots and between the latter and the 

 discal band of the same dark brown as the wing, not white as in 

 P. ganesa : hind wing with very similar markings, but all dark 

 brown and with white borders; anal lunules blue-speckled. Female. 

 Upperside with darker blue, extending from the base broadly over 

 the discal area. Underside as in male. 



Expanse 1| inch. 



Hab. Toungu, Brttish Burmah. In coll. H. G. Smith. 



Nilasera pirithous, n. sp. 



Allied to JV. nakula. Differs in the male on the upperside being 

 of a pale purplish. blue ; both wings also with a black narrow 

 marginal band. Female also of a brighter purple-blue. Underside 

 darker ; markings on fore wing less distinct, the inter-discal space 

 bordering the lunular bands dusky purplish iron-grey ; hind wing 

 with similarly disposed markings, which are all dusky purplish 

 iron-grey : these markings are most strongly defined in the male. 



Expanse 2 to 2^ inches. 



Hab. N.E. Bengal, Assam. In coll. F. Moore. 



Note. — N. centaurus and N. pseudocentaurns are both distinct 

 from the above. 



Nilasera opalina. (Plate XLIX. fig. I.) 



Male. Upperside pale purplish lilac-blue ; cilia cinereous-grey. 

 Underside pale lilacine greyish-brown ; fore wing with a white-bordered 

 brown mark within the cell, a broad similar coloured mark beyond 

 the cell, and a chain-like discal band, beyond which are two 

 marginal slender, indistinct, whitish lunular lines ; posterior border of 

 the wing greyish-white : hind wing with three transverse basal, four 

 subbasal, one discocellular, and a curved series of eight discal white- 

 bordered brown spots, beyond which are two marginal whitish 

 lunular lines, with green-speckled anal spot. 



Expanse 1| inch. 



Hab. Khasia hills (G.-Austen). In coll. F. Moore. 



