44 Dr. Roxburgh's Account of 



own weight of food. Like the caterpillars of P.paphia, they 

 are furnished Avith eight pairs of legs, viz. three pairs of pectoral, 

 four pairs abdominal, and one pair of caudal. 



Chrysalis. The cocoon, or covering thereof, white or yellow- 

 ish, of a very soft delicate texture ; in general about two inches 

 long, and three in circumference, pointed at each end (Tab. III. 

 Jig. 5. 5.). Enveloped in this case the animal remains dormant 

 from ten to twenty days, according to the state of the weather ; 

 when, like the common silk-moth, the noAv perfect insect, or 



Imago, (as Linnaeus terms it) issues forth from one end, and in 

 this state exists from four to eight days, during which period it 

 is wholly employed in the grand work of nature, generation ; 

 remaining perfectly contented in its chamber, seldom attempt- 

 ing to fly away. In this respect it differs exceedingly from 

 the Bughy and Jarroo moths. 

 The wings of the female expand from four to five inches; those 



of the male considerably less. In other respects the following 



description applies to both : 



Head roundish. 



Eyes large, bright, dark brown. 



Antenna pectinated, light broAvn ; those of the male narrower ; 



length equal to that of the head and thorax. 

 Palpi four, as in P. paphia. 

 Mouth none. 

 Thorax oval, completely covered with long, fine, brownish hair, 



with a band of white down round the neck. 

 Abdomen oblong (in the female greatly larger), clothed with much 



fine white down above, and with alternate triangular spots of 



white and brown on the sides and belly. 

 Legs six. 



Wings 



