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



abdomen white. — Female. Upperside : rich silky brown. Fore and hind 

 wings : suffused with purplish-blue at base, and with anteciliary black lines. 

 Hind wing: with two black spots at tornal area as in the male. Underside: 

 as in the male, but the markings more regular, more evenly and neatly 

 defined, and the white transverse lines on the fore wing carried to the dorsal 

 margin and no satiny lustre. Cilia, antennsB, head, thorax and abdomen 

 similar to those of the male, the thorax, however, devoid of any bluish 

 pubescence on the upperside. Expanse : male and female, 21-24mm. 



E(/(/. — Circular in shape, about half as high as broad ; the top for about 

 two-thirds of the diameter ever so slightly convex, the sides starting in 

 a gentle curve at first ; the sides are slightly convex, the greatest diame- 

 ter of the egg being in the middle ; the whole shape is that of a broad-based 

 bowl ; there is no sign of the micropyle as distinguishable from the other 

 minute punctures. The sides of the egg are studded with little truncate- 

 conical, pure white tubercles, the top of each tubercle being fiat-circular or 

 oval with the single puncture in the centre ; three lines of these tubercles 

 in the height of the egg, the curve to base and top being without any ; the 

 top row or ring of tubercles — the rows are not straight but irregular — con- 

 sists of slightly smaller tubercles than the second and there are about 17 

 in a complete circle. All the tubercles are interconnected by fine, low, 

 raised lines on the surface of the egg, the lines, when very fine being 

 greenish, when coarser, pure white. Colour : light green, the surface finely, 

 minutely punctate. B:0'4mm; H: about 0-2mm. 



Larva. — The shape is normal, like that of any of the Nacaduba cater- 

 pillars. It is somewhat triangular in transverse section, the ventrum being 

 Hat and rather broader than the sides ; the apex of the triangle or dorsum of 

 larv^a is rounded; each segment is more or less "humped" looked at 

 sideways which means that the segment margins are more or less constricted 

 dorsally : the apex of the hump being nearer the hinder margin than the 

 front margin— this applying of course only to segments 3-10 ; segment 2 is 

 more or less semi-circular in shape, the front margin slightly waved and has 

 a somewhat circular, dorsal, central depression ; segments 11-14 form a 

 parabolic-shaped piece sloping gradually backwards, the extreme margin 

 slightly thickened. The head is small, very shining, black-brown in colour, 

 the labrum whitish, the basal joint of antenntvj also whitish, the second 

 brown ; the surface is quite smooth ; the clypeus hardly distinguishable, tri- 

 angular ; the shape is higher than broad, broadly oval ; the colour varies 

 somewhat and may be light or dark. Segments 3 and 4 are concavely 

 depressed transversely in the dorsal region ; segments 5 and 6 have a small 

 depression only in the same place. The surface of the body is slightly 

 shining and is covered with minute, dark, slightly round-topped tubercles 

 from the apex of each of which arises a strong, short, stout spinous 

 hair ; these hairs being sparse except on the " humps " and on the margin 

 of the body ; there is single row of straight, short, whitish hairs round the 

 margin of segment 2 and round the anal segments, as well as a few at the 

 base of each leg and pseudo-leg and in that position on the legless segments ; 

 there is a dorsolateral, black point on segment 2 in the depression which 

 bears a minute, light hair ; there is a lengthened depression laterally on 

 each segment 3-10 and 6 depressed points just inside the margin of the 

 anal segment. The gland and organs are also present; the former trans- 

 verse, linear. The spiracles are small, round, white, hardly prominent, 

 situated above the dorso-ventral line. The colour is watery greenish with 

 the " hump '' of each segment yellow and a small, brown-rose triangle let in 

 on the dorsal line at the base of each hump ; a subspiracular, yellow line 

 interrupted at the segment-margins ; a yellow line, backed by a brown- 

 rose one joining the yellow, dorsal marking to this subspiracular line near 



