58 LOBOPHORA VIRETATA. 



above, and from them again the back is arched to the 

 end of the tenth segment. 



Individual examples vary in details of colouring, 

 though the ground colour is always some pale green 

 or tint of greenish; in one variety the head and 

 thoracic segments are much suffused with pink, and 

 on the fourth segment a lateral wedge-shaped trans- 

 verse streak of darker pink extends from behind the 

 legs upwards ; from thence each segment to the nintli 

 has on the middle of the back a broad trilobed mark 

 of dark pink, connected in the short intervals by a 

 stout dorsal line of the same colour; on the back of 

 the tenth the pink marking is more rudimentary, and 

 on the three posterior segments is little more than a 

 dorsal and imperfect subdorsal stout line, which all 

 merge together at the anal tip ; along the pale greenish 

 side is a faint and interrupted pinkish line, and on it 

 the small tubercular warts are whitish ; elsewhere they 

 are the same colour as the surface whereon they 

 happen to be, and so are not noticeable; this is the 

 case also with the spiracles. 



A second variety has the ground colour very pale 

 and slightly glaucous in its delicate tint, though 

 strengthened a little in depth anteriorly; the dorsal 

 mark on the third and fourth segments is a line of 

 purplish-pink which occurs again on the last four, 

 while on each of the intermediate segments is a 

 purplish-pink broad-arrow mark with its point close 

 to the division in front, extending backwards about 

 two-thirds of the length of the segment, the ground 

 colour of the remaining third being rather paler than 

 usual ; these arrow-heads are deepest in colour and 

 rather suffused on the fifth and sixth segments, and 

 each one following is more distinct and paler by 

 degrees ; the subdorsal line is of the same pink colour, 

 distinct and continuous throughout. 



A third variety I found in the autumnal larva 

 before mentioned, which, previous to its last moult 

 on the 13th of September, was of precisely the same 



