108 CATERPILLARS AND THEIR MOTHS 



agreeable odor, and the caterpillars " eat the leaves up 

 clean," leaving only stems to be removed. When at 

 rest the head and first two segments are drawn into 

 the third segment, which is very much larger than any 

 other. These are the most formidable caterpillars on 

 woodbine or grape-vines, and they sometimes do real 

 harm, because so many eggs may be laid on one vine, 

 and each crawler eats so much that the vine is almost 

 defoliated. We once saw half a peck of the two spe- 

 cies taken from a woodbine which grew over a piazza, 

 and we had to see this rich treasure thrown away, 

 wasted, because we were visiting a family which shud- 

 dered at the mere mention of any crawling thing, and 

 we could not, of course, take the caterpillars into the 

 house. We have never ceased to regret the loss, how- 

 ever. 



Pandorus fed for six days, achemon for five, after the 

 fourth molt, then stopped eating, and crawled restlessly 

 about the tins. Each larva was put into a sej^arate 

 smaller box to lie still and become a pupa. The green 

 crawlers grew purplish on the dorsum, and the brown 

 ones reddish or grayish, as they approached pupation. 

 The largest ones were over four inches long, the 

 smallest a little over three inches, and there were more 

 large ones than small. 



For six days both species lay in their tins, and on 

 the sixth cast the caterpillar-skins and appeared as 

 bright green, soft pupae, showing the wing-covers and 

 abdominal segments more plainly than anything else. 

 In fifteen or twenty hours they had settled into bright 

 chestnut-brown pupae, about two and a half inches 

 long, though achemon was a trifle shorter than pan- 



