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 in P. r/anesa, those on the fore wing I) 'ing 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 l^f, inch. 



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



Panchala birmana, n. sp. 



Allied to P. ganesa. 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 browm 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 Ig inch. 



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



Nilasera pirithous, n. sp. 



AlHed to N. 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 wdng 

 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. pseudocentaurus are both distinct 

 from the above. 



Nilasera opalina. (Plate XLIX. fig. 1.) 



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 Ming 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. 



