4o4 LYCANIDA. CHERITRELLA, 
HINDWING, with the costal margin strongly arched at the base, thence to apex nearly straight ; 
outer margin to base of long tail at termination of first median nervule straight but waved, 
from thence to anal lobe at right angles ; abdominal margin strongly convex at base, and 
highly excavated above the anal lobe; a short tail at the termination of the submedian nervure ; 
costal nervure strongly arched at base, afterwards nearly straight ; first subcostal nervule 
originating some little distance before the apex of the cell, nearly straight ; disco-cellular nervules 
of nearly equal length, concave, outwardly oblique, the origin of the third median nervule 
at the lower end of the cell, the second just before its end, that of the frst being fully 
four times as: distant from that of the second as is the latter from the third, the latter 
traversing more than half the length of the long tail ; swbmedian nervure nearly straight 5 
internal nervure very short, ending onthe abdominal margin above the deep excavation, and 
highly sinuous. Antenne very short, less than half the length of the costa of the forewing ; palpi 
long, porrect, almost naked, much longer in the female than in the male ; eyes naked.” 
“ Nearest to Zicherra, de Nicéville, with which it agrees in having no secondary sexual 
characters in the male, in the neuration of the hindwing ; also in the length and position of 
the tails, the anal lobe, and the deep excavation above it, but differs from it in the truncation 
of the forewing, the costal nervure terminating long before the apex of the cell, and the fourth 
subcostal nervule springing from the third about its middle instead of considerably nearer 
the apex.” (de Nicéville, 1. c.) 
When describing this genus, I adopted the formula used by Mr. Moore, I should now 
describe the veins of the forewing as follows :—Bases of first and second subcostals and upper 
discoidal nervules equi-distant, third subcostal arising from the costal nervure nearer to the 
apex of the cell than of the wing, long, no upper disco-cellular nervule, as the upper discoidal 
springs from the subcostal nervure, middle disco-cellular arising from the upper discoidal close 
to its base, slightly shorter than the lower disco-cellular. 
Cheritrella contains but a single species, which is certainly one of the most curious of this 
group. It occurs in Sikkim and the Khasi Hills, and is very rare. 
953. Cheritrella truncipennis, de N. (PLATE XXVIII, Fic. 223 ¢). 
C. truncipennis, de Nicéville, Proc. Zool. Soc, Lond., 1887, p. 456, pl. xxxix, figs. 4, male 53, female, 
Hapirat: Sikkim, Khasi Hills. 
EXPANSE: @, 1°50 to 1°60; 2, 1°45 to 1'55 inches. . 
DESCRIPTION: ‘MALE. UPPERSIDE, Jo/h wings black. Forewing with all but the costa 
narrowly, and the outer margin broadly deep dull purple, with a very slight gloss in certain posi- 
tions. Hindwing with a large, brilliantly iridescent, rich bright steel-blue* patch from the base 
of the wing, not reaching the outer margin, anteriorly bounded by the costal nervure, extending 
into the upper portion of the discoidal cell and into the upper portion of the second median 
interspace ; the anal lobe and short tail beyond it deep ferruginous; the long tail becoming 
white towards its termination, pure white at its tip ; an obscure round black spot between 
the bases of the two tails. UNDERSIDE, doth wings umber-brown. Forewing with a darker 
brown pair of lines across the middle of the discoidal cell, another pair enclosing the disco- 
cellular nervules, a discal irregular fascia from the costa to the first median nervule, very 
broad and dark posteriorly, a submarginal series of dark dots between the veins, the inner 
margin very broadly pale fuscous without markings. Hindwing more or less covered with 
fuscous, dark brown, and umber fascize and spots, the most conspicuous of which are two black 
spots in the subcostal interspace, a ring-spot at the middle, and an oblong one at the end of 
the cell, a very dark oblique band from the middle of the abdominal margin to the middle of 
the wing, a discal irregular fascia recurved upwards to the abdominal margin, and a marginal 
dark fascia more or less sprinkled with whitish scales towards the anal angle. FEMALE. 
* “Very similar to the colour exhibited on the upperside in the male of /Jasmides bochus, Cramer, but not 
quite so brilliant, and more purple than blue in shade,” 
