6 PETASIA NUBECULOSA. 



sides pale drab ; the black warts very large and round, 

 each furnished with a small black bristle. In this stage 

 the likeness to cceruleocephala is marked, but at each 

 moult the warts become proportionately smaller and less 

 conspicuous, besides assuming another colour, and so 

 this resemblance disappears. From the first the young 

 larva eats small holes quite through the leaves of its 

 food, and I noticed its habit of spinning a few threads 

 for afoot-hold. 



After the first moult a slight protuberance appeared 

 on the twelfth segment and front portion of the thir- 

 teenth ; the ground colour was pale greenish, bearing 

 dorsal to subdorsal lines of paler dots, and on the 

 middle segments a wide sort of incomplete V in very 

 fine black lines ; the black tubercular dots were much 

 smaller than before, and only to be seen with a lens, 

 but their bristles had become longer ; the anterior legs 

 were black, and on the outside of each ventral proleg 

 was a black spot. 



After the second moult the head was pale shining 

 green, the body light dull green, having a purplish 

 tinge in it, the tubercular dots pale yellowish, the 

 dorsal markings composed of elongate whitish-yellow 

 dots, two on a segment, and along the subdorsal region 

 were four yellowish dots on each segment, a slanting 

 streak of the same colour appeared on the side of the 

 fourth, and a transverse streak on the ridge of the 

 twelfth, and a black spot on each ventral proleg as 

 before. 



Having moulted the third time, June 3rd — 5th, the 

 larvse began to assume their well-known star-gazing 

 posture, with all the front part of the body extended 

 upward in a curve, bringing the head so far back as to 

 be elevated just over the eleventh segment, while the 

 anterior legs were freely outspread, the third pair 

 wider apart than the others ; all the details of colour 

 being similar to those of the previous stage. 



The fourth moult happened on the 9th — 10th of 

 June, and they soon resumed feeding, eating large 



