COMMON BUTTERFLIES OF THE PLAINS OF INDIA. 287 



reddish ; there should be no red in it. This tint is particularly stron^ in 

 the figure of the female and especially on the underside. The blue 

 irridescence is wonderfully well reproduced. 



Eijcj, — Is nearly spherical, broadest at a third of height from base. There 

 are 10 thin, high, distinct meridional ridges from base which lose them- 

 selves on the vertex where there is a round, smooth, shiny space. Colour 

 as glassy green. The egg is very small for the size of the insect. Breadth 

 0*6 mm ; height very nearly the same. 



Larva. — The larva is spined, has a cylindrical black body with greyish 

 •satiny marbling ; the head has two long horns, these horns being generally 

 black, while the rest of the head is yellow. Head is heart-shaped, the face 

 is very slightly convex in centre and is broadest across apex ; on the vertex 

 ■of each lobe is an erect, spinous, hard process or horn in the same plane as 

 the face and diverging one from the other, separated somewhat narrowly 

 at bases by a triangular sinus ; the top of each horn is more coarsely and. 

 densely spined than the stems, where the little spines are sharp and 

 thickened at the bases ; the colour of head is brown-yellowish and shiny 

 with a round black spot at the base of each cheek ; the horns are generally 

 black. Segment 2 is nearly as broad as the head. The body is cylindri- 

 cal, constricted at the segment-margins somewhat, perpendicular and high 

 at anal end which is rounded. Spiracles are oval, black and rather large. 

 Surface of the body is velvety looking ; there are the following spines : on 

 segment 2 : a central row of 8 small simple spinous hairs, four on each side 

 of dorsal line, and 2 antespiracular, spinous processes one below the other, 

 the lower being the larger of the two, though both are small ; segments 3 

 and 4 : a large subdorsal and lateral spinous process and 2 small subspira- 

 cular ones both on the same level, one behind the other, and half 

 the size of the others ; segments 5 to 11 have each a dorsal, subdorsal, 

 supraspiracular and subspiracular spinous process as well as 2 small ones 

 below the last, one below the other on segments 5 and 11, both at the 

 same level on segments 7 to 10 and a triangle of 3 on segment 6 ; seg- 

 ment 12 : 2 large dorsal spinous processes, one near front margin, one near 

 hinder margin, a subdorsal one, a supraspiracular one somewhat nearer 

 the front margin, and a subspiracular one as well as a single small one 

 underneath the last ; segment 18 has a single lateral process and the 

 anal flap has one on the margin about middle. The colour of the body is 

 velvety black indistinctly marbled with satiny greyish ; the neck or front 

 part of segment 2 is orange ; latter half of anal flap is dirty brown as well 

 as prolegs and true legs ; all spinous processes are dirty light reddish- 

 yellow in colour. The processes are about equal in length to each other 

 throughout, except the small ones above mentioned, which are much 

 smaller. L : 57 mm. ; B: 5 mm. ; L of head-horns : 3"o mm. ; L of spinous 

 processes : 3 mm. 



