THE CANADIAN ENTOMOLOGIST. 245 



the insect has the precautionary instinct, which acts as a second induce- 

 ment, to raake the aperture in the fruit in that stage of its existence in 

 which it is furnished with organs best adapted for the purpose, for, had the 

 larva omitted taking this step, the consequence would have been that the 

 poor insect, when come to its butteriiy state, would have been a prisoner 

 totally unable to make its escape, being unprovided with any instrument 

 sufficiently powerful to make a hole in the shell. 



" The chrysalides are attached horizontally upon the inner walls of the 

 pomegranate by means, first, of a patch of silk laid upon its surface to 

 the centre of which the tail of the chrysalis is attached, and second, of a 

 slender silken thread passing from side to side over the base of the 

 abdominal segments. 



" Another curious instance of instinct yet remains to be noticed. The 

 butterfly, so soon as ever it has escaped from the puparium, must make its 

 escape out of the hole formed by the larva. Delay would be death, as 

 the wings would soon acquire their full expansion of nearly a couple of 

 inches, in which state it would of course be unable to creep out. 



" In the chrysalis state the belly of the insect is placed in contact with 

 the inner surface of the fruit ; consequently, as the slit by which the 

 butterfly escapes out of the puparium extends along the back, the under 

 surface of the latter remains entire, the anterior lateral portions on each 

 side of the slit (extending as far as the whole coverings of the wings), 

 curling up and lying close upon fhose parts which have covered the 

 breast and limbs, leaving the abdominal portion in the same form as 

 when it enclosed the insect. ( Westwood, Trans. Ent. Soc. Lond., (I.), 

 ii: I., 1837. 



" At the time the pomegranate is in flower, and at a very early 

 period, the Hair Streak may be seen very busily occupied about the 

 flowers, and I have little doubt that the eggs are deposited at the bottom 

 of the calyx, from the position in which I have seen the abdomen of the 

 butterfly placed. As the fruit enlarges the eggs are enclosed, and in this 

 situation matured. 



" In order that I might obtain a perfect insect I surrounded several 

 of the fruit with fine gauze, but in such a manner as not in the least to 

 interfere with the caterpillar in its labour of connecting the fruit and stalk 

 by means of the web, but to my astonishment and disappointment this 

 never took place. The caterpillars issued from the fruit, and finding their 



