442 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXV. 



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violet. Fore wing: the discocellulars with a transveise, dusky, short line. 

 Fore and hind wings otherwise immaculate, with anteceliary, dusky lines. 

 Underside: ground-colour darker, in some pale brown; markings on both 

 fore and hind wings as in the male. Antennae, head, thorax and abdomen 

 similar to those of the male, but on the underside the palpi, thorax and 

 abdomen, in some specimens, purer white. Expanse : male and female, 

 18-24mm. 



Larva. — Shape normal, thickest in middle, sloping towards ends, seg- 

 ment 2 semi-circular in outline, the anal segment about the same breadth as 

 segment 2, rounded at extremity. The head is small, round in shape, the 

 colour black-brown ; the neck is long ; segment 2 narrowed somewhat in 

 front, slightly longer than broad, the dorsal depression 4-sided, the margin 

 of the segment slightly swollen. The surface of the larva is dull and 

 covered with comparatively long, erect, brown hairs, springing, for the 

 most part, from tiny, white, cylindrical tubercles — these cylinders being 

 brown on the fore part of body — which hairs are interspersed with short, 

 erect, brown bristles ; the margins of body are clothed with long, fine, 

 white hairs ,• segment 2 has the bottom of the dorsal depression studded 

 with tiny, brown, bristle-bearing tubercles. Spiracles are small, light 

 yellow-brown in colour. Colour of body is green, with a dorsal and spira- 

 cular, broad line interrupted at the segment-margins and, between these, 

 two indistinct, lateral, whitish lines ; all longitudinal. L : 9mm. ; B : 

 3"2omm. 



Pupa. — Is of the normal shape, broadest about segment 7, thorax humped, 

 constriction behind it very slight dorsally and still less laterally ; the anal 

 end rather pointed for the type, turned under at last segment ; segment 

 2 with the outline of front margin rounded, widely and shallowly emargi- 

 nate in front, its dorsal slope in the same plane as that of anterior part of 

 thorax ; abdomen moderately stout, circular in transverse section. 

 Spiracles of segment 2, slightly raised, white, linearly oval; the rest 

 nearly circular, slightly raised, oval, white. Surface is covered with fairly 

 long, erect light hairs fairly plentifully, these slightly longer at both 

 extremities; the wings naked. Colour: pale opaque green, with a thin, 

 dorsal, black line from end to end and a black line along dorsal margin of 

 wings from middle of thorax to front margin of segment 6. L : 7mm ; 

 B : 3mm. 



Habits. — The egg, very similar to that ofZ. wa/ia, is laid in similar 

 places to it : on flowers or leaves, stalks. &c. The larva at first lives 

 in the flowers or flower-buds ; afterwai'ds, becoming too large, it is 

 generally found on the pods or stalks, leaves, &c. It is often, but 

 not constantly, attended by small ants. The chrysalis is formed 

 practically anywhere, often on a leaf of the plant or on a leaf of any 

 neighbouring thing. It is attached by the tail and a body-band in 

 the usual way. The periods of growth and rest in the piipal stage 

 are normal. The foodplant of the larva is Zornia diphiilla, a little 

 semicreeping, grey-hairy vetch characterized by 2-foliolate leaves 

 which are often pressed together and its little red flowers : a very 

 common weed in grassy lands throughout India at all heights up to 

 4,000 feet and in any rainfall. There may be many other food- 

 plants among the numerous vetches and probably are. The butterfly 

 keeps close to the ground, is fond of the sun and open places, has a 

 weak flight which is never continued for long at a time ; it often 



