40 LEPJDOPTERA. 



Lakva. Length about one inch, rather slender ; liead a little 

 narrower than the second segment and deeply notched on the 

 crown ; body rounded beneath, less conspicuously iiattened 

 above ; second, third, and fourth segments the narrowest, and 

 of about equal width ; from the fourth widening to the tenth ; 

 the eleventh, twelfth, and thirteenth rather narrower, and all 

 three of about the same width ; skin having a tough appear- 

 ance, each segment overlapping the next, and also con- 

 spicuously ribbed across ; dorsal surface pale slate-grey ; 

 head grey, the sides and the dividing notch dark brown ; 

 dorsal line narrow and pale, but edged on each side, in the 

 centres of fifth to tenth segments, with a narrow black 

 streak ; on the other segments the edging is continuous, but 

 narrower and less distinct ; between the dorsal and subdorsal 

 lines on the middle segments is another series of very black 

 streaks, and these being situated nearer the subdorsal 

 region than the edging of the dorsal line, give the dorsal 

 surface a very pretty variegated appearance ; subdorsal lines 

 very indistinct, pale slate-colour ; spiracular lines scarcely 

 perceptible even with a lens ; vertral surface uniform pale 

 slate-colour, with a very narrow, indistinct, paler central 

 line, and equally indistinct transverse waved longitudinal 

 lines. In some individuals the black dor.sal markings are 

 comparatively indistinct, and in one they show only as paler 

 confused marks. (Geo. T. Porritt.) 



That of the variety circdlata is thus described by the Rev. 

 J. Hellins : — When full fed about three-quarters of an inch 

 long, slender, tajiering towards thi> head and rather Iiattened ; 

 the head is small and notched ; the skin very rugose; colour 

 pale grey or yellowish-grey above, darker grey below : sub- 

 dorsal lines blaclcish-grey ; dorsal and spiracular lines very 

 fine, and whitish in colour; on the anterior segments to the 

 fifth the dorsal line is edged with fine blackish lines, but on 

 segments six to nine with pairs of blackish curved dashes, 

 darkest just at the segmental folds, and lighter on the 

 following segment ; and on the same segments these markings 



