LYCAENIDA. ZELTUS. 399 
outer margin of the forewing being anteriorly truncated and concave makes C. truncipennis, 
mihi, recognisable at once from every other Indian species of Zycenide. The genus has ne 
secondary sexual characters in the male. 
The next genus, Meomyrina, Distant, contains two species only, the superb WV. Aiemalis, 
and WV. zivea, Godman and Salvin. They are brilliant snow-white on the upperside, the 
forewing with a broad outer black border, which in the male is glossed with blue; the hindwing 
has a black spot on the margin in the first median interspace, the female has a dusky black outer 
margin. The underside is crossed, at regular intervals, by numerous catenulated bands, a 
little darker coloured than the ground. J. Aiemadis occurs in Burma and the Malay Peninsula, 
LV, nivea, in the Island of Billiton. The genus has no secondary sexual characters in the male. 
The next genus, Zicherra, de Nicéville, contains one good and one doubtful species. 
It occurs in Northern India from Kumaon to Upper Assam, and also in Upper Burma, 
The male is dusky dull purple on the upperside with a narrow outer black border, the 
hindwing with two whitish spots on the anal region. The female is dull black above. Both 
sexes are sparsely marked on the underside, the ground-colour varying from bright orange 
to dull brownish, according to the season of the year when the butterflies appear. The tails 
are always more or less tinted with ochreous. The male has no secondary sexual characters. 
The last Indian genus of the group is the C/eritra of Moore. It contains one distinct 
species and one doubtfully distinct local race. It is found in India, Ceylon, and the Malay 
Peninsula and Archipelago. The coloration of these two species is very similar to that of the 
species of Zicherra, mihi, but the male is of a duller purple on the upperside, with an extremely 
narrow outer black border, the tails pure white instead of being white tinged with pale ochreous. 
The female is dull black on the upperside, with the white spots on the anal region of 
the hindwing rather larger thanin C. acte, Moore. ‘he underside is much paler than in 
that species, white tinged with ochreous on the forewing anteriorly, or entirely white, The male 
has a small tuft of hairs on the hindwing on the upperside at the base of the costal interspace. 
The genus Aitra, mihi, is monotypic, and occurs in the Malay Peninsula and Borneo. 
The male has a very large round patch of modified scales on the upperside of the forewing. It 
is coloured above a bright coppery, reminding one of the species of the genus Cwretis, Hiibner. 
Genus 152.—-ZELTUS, nov. (PLAre XXVIII). 
Allied to AHyfolycena, Felder. FOREWING, shorter, comparatively bro»der ; costa more 
arched, outer margin more convex, 7zzer margin in male convex, not straight ; @zscoidal cell 
distinctly shorter, not reaching to the middle of the wing. HINDWING, longer, narrower ; 
costa shorter, afex at termination of first subcostal nervule very acute; ¢az/s broad, weak, 
highly ciliated (“fluffy”), the inner one at the termination of the submedian nervure fully 
twice as long as the outer tail ; costa’ mervure much shorter, not nearly reaching the apex of 
the wing, its place taken by the first subcostal nervule ; ¢/ervna/ nervure also much shorter ; 
antenne much shorter, considerably less than half the length of the costal margin of the fore- 
wing. Zyes hairy. ody smaller and shorter. Type, Pafilio etolus, Fabricius. 
Larva, depressed, increasing in size to the fourth segment, the anal segments dorsally 
flattened. Pupa, of the normal lyczenid shape. 
The type and only known species of this genus is a much more weakly constructed 
butterfly than the species of the genus Hyfo/ycena, and has a somewhat slower flight at any 
rate than the commonest species of that genus, A. ery/us, Godart, which moreover occurs 
generally with it ; it does not possess the male secondary sexual characters found in that species. 
The male of Z. etolus is deep indigo-blue on the outer two-thirds of the forewing on the 
upperside, with a small similar patch at the apex of the hindwing, the rest of the surface of 
both wings pale bluish-grey. The female is dull smoky-brown on the upperside, the hindwing 
with some white irrorations towards the anal angle, and two anal black spots. The underside 
is bluish-white, the apical half of the forewing and theapex of the hindwing ochreous-brown, 
