NYMPH ALIN2E. (Group NYMPH ALIN A.) 
121 
SYMBRENTHIA SILANA. 
Wet-season form (Plate 325, fig. 2, 2a, $). 
Symbrenthia Silana, de Niceville, Journ. Asiatic Soe. Bengal, 1885, p. 117, pi. 2, fig. 9; Butt, of 
India, etc., ii. p. 243 (1886). 
Imago. —Male. Upperside fuldescent-black. Forewing with a yellowish- 
ockreous discoidal band, which is palest in the middle, and somewhat irregularly- 
clayate in shape ; a subapical rather broad angulated oblique band not quite reaching 
to the costa, and above which is a slender curved apical lunule ; below is a broad 
lower-discal oblique band. Kindwing 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 with 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. Kindiving 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 sharply angled and also centred with metallic-blue 
scales. 
Female. “ Larger. Forewing broader, the outer margin evenly curved; 
markings throughout paler ; except the blue ones on the underside of kindwings, 
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, $ 2, ? 2n> inches. 
Dry-season form (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, <$ l^o inch. 
Habitat. —Sikkim ; Bhotan. 
Distribution. —“ This is rare and local in Sikkim, at about 2000 feet elevation, 
vol. iv, September 12th, 1899, B 
