10 PERIDEA TREPlDA. 



rounded above and with a flattened base attached to 

 the bark, apparently smooth and of pure white surface, 

 though when they came I could just see a faint light 

 brownish spot showing through the top of the egg, 

 the shell being otherwise quite opaque. They both 

 hatched in the early morning of the 27th, and the 

 shell could then be seen to be quite thick, of a bluish- 

 green substance within, and externally with a layer of 

 opaque white. 



The head of the young larva was remarkably large, 

 the body tapering thence behind ; in colour it was 

 wholly of a light, rather olive- or ochreous-greenish ; 

 anterior legs black and dots blackish, each dot having 

 a fine black hair. On the night of June 2nd they 

 moulted the first time, and by the morning of the 3rd 

 they were feeding quite through the leaf from the edge 

 (previously they had eaten between the veins, skele- 

 tonising the margin of the leaf). They were green in 

 colour, with a streak of blackish behind, down each 

 cheek to the mouth, the back rather deeper green with 

 a darker dorsal line, and a faint yellowish subdorsal 

 line ; dots and hairs black. 



On the 10th and 12th of June they moulted the 

 second time, and in four days the slanting yellow 

 streaks appeared on the sides as puffed slashes ; the 

 double dorsal, pale yellow lines, having between them 

 a dark green central line, were suggestive of the future 

 design, the subdorsal line yellow and very thin, the 

 slanting side stripes faintly edged with dark red ; on 

 the head was a fine black streak down the middle of 

 each lobe, and another down the back of each cheek. 



Both larvae moulted the third time on the 21st, and 

 both for the fourth time on the 30th of June, and fed 

 well the next day, but on the 3rd of July I found one 

 was lying dead. The other became a fine thick fellow, 

 brilliantly coloured, but by the 14th July it was 

 becoming of a more dingy green, and the next day had 

 spun itself up in a brownish cocoon between leaves of 

 oak. (W. B., Note Book IV, 112.) 



