134 Mr. Roland Trimen on some new 
disco-cellular marking, whitish in the middle, brownish grey on 
each side, and whitish edged anteriorly and posteriorly; and a 
discal series, inwardly inclined inferiorly, of similar confluent 
marks, more widely whitish mesially, of which, in fore wing, the 
6th (lowest) is considerably larger than the rest; two submarginal 
lunulated whitish streaks, with the space between them rather 
darker than the ground colour; a sharply-defined black hind- 
marginal bounding line, immediately preceded by a white one; 
four whitish dots on costa, two above disco-cellular mark, and two 
above (one of them before) first mark of discal series ; cilia white 
next bounding line, grey externally. Hind wing; Discal series of 
marks very irregular, the 1st (costal) separate from and before the 
2nd, and just above terminal disco-cellular mark, the 3rd largest, 
subquadrate, and nearest hind margin, the 6th and 7th elongate, 
as near base as the Ist, and forming an angle on submedian ner- 
vure; a subbasal series of three small, rounded, fuscous white- 
ringed spots, one just below costal nervure, one in discoidal cell, 
and one on inner margin (the middle and lower spots more faintly 
marked in one example); on hind margin a well-marked black 
spot, bounded inwardly by an orange lunule, and sprinkled with 
bluish silvery scales, between 1st and 2nd median nervules, and 
a second similar marking at anal angle, crossed by submedian 
nervure. 
This species is well characterised by the brightness 
and paleness of the upper side blue, and by the abrupt- 
ness with which that colour in the fore wings terminates 
(except narrowly along inner margin) about the middle. 
From its near ally, ZL. livida, Trim., it differs on the 
upper side also in its greyer ground colour without 
cupreous gloss, in the much more strongly marked ter- 
minal disco-cellular mark of the fore wings; while in 
the hind wings there is no discal dusky streak, and no 
orange lunule between 1st and 2nd median nervules, but 
the hind-marginal white lunules are much more de- 
veloped, and there are traces of a submarginal series of 
whitish lunules also. The under side is distinguished by 
its greyish ground (less brownish in tint), and more pro- 
nounced whitish markings, and in the hind wings by a 
subbasal series of three spots (instead of a single sub- 
costal spot), and a rather more irregular discal macular 
series. 
The discovery of this butterfly is due to Mr. A. D. 
Millar and Mr. C. W. Morrison, who together took speci- 
