488 
Dr. T, A. Chapman on Zizecria, 
This tendency to obsolescence of the spots is rare in the 
forewing, common in the hind, and apparently more 
frequent in ossa. 
The row of spots in the disc of the foi’ewing may be in 
a fairly regular curve, or by a variation common in many 
blues with this row of spots, the row may be angled by 
the spot above vein 2, approximating to the discal spoh 
The former is the rule in maha (fig. 2), the latter in ossa 
(fig. 3), but the exceptions are frequent. On the hind¬ 
wing the condition is reversed. The same spot approxi¬ 
mates the base most in maha, in ossa it is often quite in 
line with those on either side, making a nearly straight 
row of five spots. But again there are many exceptions, 
so that one cannot confidently separate the species by 
these characters. I have no doubt that any one who is 
familiar with both species in the field, could separate them 
easily, and in the cabinet, I entertain any doubt only over 
perhaps 10 per cent. 
The male appendages are of very similar structure. A 
reference to photographs of them {maha, figs. 17, 18, 
ossa, figs. 19, 21) will save any long description, but it 
may be pointed out that the clasps are much longer and 
more slender in maha —length 1'05 mm. in maha, 0'84 in 
ossa, but the width is equal at the point where the two clasps 
become free from each other. This point is, however, a 
two-fifth of the clasp from its base in ossa, and less than a 
third in maha. The result is tliat the clasp of ossa looks 
short and squat beside that of maha. The end or head of 
the clasp is also different. Regarding it, as its outline 
suggests, as a foot with a heel and toe, the heel in maha is 
square, in ossa produced backwards, and tending to have 
an acute point. The toe consists in maha of two spines, 
very separate and distinct, and usually of about equal 
length; in ossa there is only one spine, terminating in a 
conical process, on the upper margin of which a notch 
marks what is probably the homologue of the other spine 
as developed in maha. The process is, however, propor¬ 
tionally larger than in maha. The sole of the foot is fiat 
in maha, but in ossa has a hollow, due to the projecting 
heel. 
ZiziNA. —In the sub-genus or genus we have two Indian 
species {sangra and indica) and one African {antanossa). 
I say sangra and indica, because these names, though 
possibly both merely synonyms, have each a definite sig- 
