44 APATURA IRIS. 



of pinkish or yellowish flesh-colour ; and on each side 

 of the other segments, as far as the tenth inclusive, a 

 thin oblique stripe of dull yellow, slightly edged with 

 red, running backwards from the spiracular region of 

 one segment to the subdorsal region of the next ; the 

 most conspicuous is that which begins on the sixth and 

 ends on the back of the eighth segment, being longer and 

 thicker, especially at the end, which is bordered above 

 by a purplish-brown or crimson mark; the raised 

 points there being much longer and larger than 

 those on the other lines, as they also are longer than 

 those of the green surface. There is a pale yellowish 

 lateral stripe on the anal segment, extending to the 

 tips. The spiracles are red, and below them the green 

 softens into a pale whitish-green, with a fringe of white 

 silky hairs above the prolegs ; these last are of a pale 

 transparent bluish-green, the ventral surface whitish. 



The head behind is the same colour as the back, and 

 the face a pale, shining, whitish-green ; the horns in 

 front bluish-green, which colour extends as a stripe 

 down each side of the face ; the tips of the horns 

 brownish-red, and a little below they have a few raised 

 black dots. 



When full-fed the larva spins a large quantity of silk 

 on the under side of the leaf, to which it attaches itself 

 by the anal prolegs, and slightly with the anterior pair 

 of ventral ones, and remains motionless for about four 

 days ; it then relaxes its hold by the ventral prolegs and 

 hangs down, suspended only by the anal pair, and 

 within an hour the transformation to a pupa is complete. 



The form of the pupa is broad and flattened on the 

 sides, the outline of the abdomen and wing-cases nearly 

 straight, while that of the back forms a very obtuse 

 angle, having a thin and rather sharp ridge, projecting 

 to a point about midway, from which it slopes off to the 

 anal point and to the head, which has a short, pointed, 

 and flattened forked pair of appendages. Seen only from 

 the back or front it would appear a rather long and 

 slender pupa in comparison with a side view. 



