6 PEOCRIS GLOBULAEIJE. 



After seven days' feeding it reappears fat and plump, 

 the pubescence less noticeable, more of the skin visible 

 and glistening as it sits still on a leaf. 



After the first moult, while quietly resting it appears 

 to be a mass of bristly tubercles, and of a fresh light 

 green colour, but by the time it has again ceased 

 feeding and is laid up on a leaf for the next moult, 

 the glistening skin has a greenish-buff tint, as from 

 its plumpness the bristles are farther apart and allow 

 this to be seen. 



After the second moult it is still fresher and greener 

 than at any time before, though when its few days of 

 feeding in the mine have passed, and it has again laid 

 up, it is of a deep pinkish flesh colour. 



After the third moult its colour at first is quite 

 dark slaty-green, matching very well with that of the 

 leaves of its food-plant ; between the rows of tubercles 

 down the back can be discerned a thin dingy, purplish- 

 brown dorsal line, spreading a little at each segmental 

 division; the tubercles are covered with short radiating 

 bristles of a drab colour ; but when it is again laid up 

 it is very much lighter and the glistening skin is of an 

 ochreous-green. 



After its fourth moult, and it has fed a few days, 

 when seen with the two front segments fully stretched 

 out, it is 3^ mm. in length, but later, when fixed for 

 hibernation with the two front segments retracted, 

 it appears not longer than 3 mm., its figure a broad 

 o^val, like that of a small hemp-seed, and it is covered 

 with closely-set bristly tubercles and a few longer fine 

 hairs ; three rows of tubercles are on either side of the 

 body in a longitudinal direction, so that six tubercles 

 of broad-oval shape surround each segment except on 

 the belly, which is naked; between the two which 

 occupy the back of a segment is a black arrow-head 

 mark; these dorsal tubercles are very dark dingy 

 brownish-green with yellowish-green outer edges along 

 the subdorsal region, relieved by a fine blackish line 

 beneath; the dusky bristles make the general colouring 



