88 NEMEOBITJS LTTCINA. 



piercing in some instances quite through the leaf, 

 over the surface of which they were then more dis- 

 persed. Two or three other larvae make their appear- 

 ance on other leaves, but at this time their powers of 

 locomotion were very feeble. 



On the 20th their bodies appeared rather trans- 

 parent, but with an internal, dingy, greenish, opaque, 

 thick dorsal vessel showing through the skin. By 

 the 27th they had grown double the size, with much 

 the same colouring ; shining, lightish warm brown 

 heads , faintly purplish-brown bodies ; black hairs on 

 the back, paler ones below on the sides ; the belly 

 lighter than the back; a shining brown narrow plate 

 on the second segment ; the body less glistening and 

 transparent than before. By the 8th of July the 

 most advanced were two-tenths of an inch in length ; 

 the head and plate as before, but the body was more 

 drab colour, with a darkish grey-brown dorsal line. 

 They were now in their third moult, and increasing 

 daily in size and in depth of colouring. The leaves of 

 the plant were quite riddled with holes. By the 14th 

 of July the colour was more of a drab like dingy- 

 green, with pale brown head and small narrow plate 

 on the second segment and a dark dorsal line. 



At the next moult the larva becomes of a dingy- 

 green and rather velvety looking, and measures when 

 about to moult again nearly seven-sixteenths of an 

 inch. By the 26th of July the ground colour was a 

 dirty yellowish olive-green, with a dark purplish 

 dorsal line showing faintly on the thoracic segments, 

 but on all the others as a purple spot on the middle of 

 each of them. The head light warm glossy brown, 

 the hairs above black, those above the legs of a light 

 drab. At this date one had already moulted again 

 and attained a length of half an inch ; the head still 

 brown and shining, but the skin of the body no longer 

 visible, being so densely clothed with light soft brown 

 hair. On each segment on the back was a triangular 

 mark of blackish-brown hairs, the base of the triangle 



