NYMPIIALINJE. (Gronp IfTMFSALINA.) 121 



SYMBRENTHIA SILANA. 



Wet-season form {'Plaid Z2o, fig. 2, 2&, ^). 



Symbrenfhia Silana, de Niecville, Journ. Asiatic Soc. Bengal, 1885, p. 117, pi. 2, fig. 9; Butt, of 

 India, etc., ii. p. 243 (1886). 



Imago. — Male. Upperside fulvescent-black. Forewing witli a yellowish- 

 oclireous discoidal band, which is palest in the middle, and somewhat irregularly- 

 clavate in shape ; a subapical rather broad angulated oblique band not quite reaching 

 to the costa, and above which is a slender curved apical lunula ; below is a broad 

 lower-discal oblique band. Hindwing with a broad yellowish-ochreous discal band, 

 palest in its middle, and not quite reaching the costa; a submarginal narrow band 

 attenuating anteriorly and ending at the lower subcostal veinlet ; a marginal 

 obsolescent fine line. Underside bright ochreous-yellow. Forewing ^\\h very broad 

 black tesselate marks, as normally disposed, except that the ordinary basal mark 

 below the cell is absent, there being only three marks in the submedian interspace, 

 and the two superposed subapical marks are distinctly ocellate, each having a white 

 central dot ; the marginal inner line is also thick, and the mark at posterior angle 

 is large and prominent ; the intervening areas representing the bands of the upperside 

 are opalescent-white. Hindwing with broad black basal and lower-discal tesselate 

 marks, the intervening discal area being opalescent-white, the outer-discal series of 

 five spots are small, the middle one only being conical, the others almost round, 

 and the three lower only are centred with metallic-blue scales ; the three lower outer 

 marginal connected-lunules are sharjaly angled and also centred with metaUic-blue 

 scales. 



Female. " Larger. Forewing broader, the outer margin evenly curved ; 

 markings throughout paler ; except the blue ones on the underside of hindwings, 

 which are larger and more prominent. The subapical streak on the upperside of 

 the forewing touching the costa, and a small narrow spot just within it," 



Expanse, (J 2, ? 2^) inches. 



Dry-season /orm (Plate 325, fig. 2, b, (?). 



Male. Upperside with broader and paler bands, with more irregular edges. 

 Underside paler yellow than in wet-season form, the areas representing the bands of 

 upperside broader ; markings the same, but not quite so broad ; the submarginal 

 black spot between the upper medians centred with blue speckles. 



Expanse, S I^-q inch. 



Habitat. — Sikkim ; Bhotan. 



Distribution. — " This is rare and local in Sikkim, at about 2000 feet elevation, 

 VOL. IV. September 12th, 1899. R 



