124 CATERPILLARS AND THEIR MOTHS 



ravenously. They had changed somewhat. The 

 head was large, round, pale green with a few white 

 dots. The first and anal segments were like the head. 

 The thoracic segments and the dorsum and venter of 

 all were dotted with white. The abdominal segments 

 were dark blue-green with transverse striations. The 

 obliques were yellow- white, the last half of the last 

 pair being clear white. On the substigmatal ridge was 

 a pale green line which made a /_ with each oblique, 

 inclosing the spiracle. The spiracles were white on 

 the first segment, buff on the others, and encircled 

 with black. The anal plate was edged with greenish 

 yellow. The caudal horn was long, slender, sharp, 

 rough, and blue-black, with a few white spines. The 

 legs were green with black dashes, the props were 

 green dotted with white, the anal pair paler. 



The caterpillars ate so much that in five days they 

 grew to a length of four and a quarter inches, being as 

 large around as a forefinger, and very strong. They 

 jerked themselves furiously if disturbed, and made a 

 squeaking noise, but how they made it we never could 

 find out. The boxes can be kept clean much more easily 

 at this stage if a little sand is sprinkled on the bottom. 



At the end of the five dn,ys they stopped eating, 

 grew duller in color, and crawled noisily about the 

 tins, trying to get out. We found that they exuded so 

 much sticky fluid that we gave them a little earth in 

 the tins. They went into this — it was not more than 

 two inches deep — and lay there for two weeks. Then 

 the pup?e appeared, bright green in color, soft, and 

 with a short, wide flap from the head over the wing- 

 covers. We left them to harden, when, to our surprise. 



