708 Dr. G. D. H. Carpenter on the 



to work to consume the rest, which it accomplished in 

 half an hour. The larva was rather " maggotty looking," 

 being of a dull greenish white, and quite smooth, with no 

 processes whatsoever on body or head, which was smooth 

 shining black. In a very short while the larva took up 

 its position along the edge of the leaf: and within a few 

 hours, before it had eaten any of the leaf, had affixed to 

 its back one or two pellets of excrement. The way in 

 which it subsequently ate the leaf was interesting. It 

 ate a small hole out of the edge, and then continued this 

 down the side of a lateral rib of the leaf, subsequently 

 doing the same on the other side of the rib, which was 

 cut out from the rest of the leaf tissue but attached by 

 its base. On this bare rib the young larva rested, and 

 very soon had accumulated a large number of light brown 

 pellets of excrement on its back and on the leaf around 

 it. It always returned to rest at the same spot after 

 feeding. 



First Ecdysis. — The first ecdysis occurred on July 1st, 

 with a complete change in appearance and habits. The 

 larva no longer covered itself with pellets ; and the 

 appearance it took on persisted until after the fourth 

 ecdysis ; the characters acquired at the first being merely 

 accentuated by the second and third ecdyses. The de- 

 scription of the larva after the third ecdysis is as follows. 

 (See also Miss Fountaine's drawing.) 



From first to fourth Ecdysis. Dorsally. — Fi'om behind the third 

 segment to the posterior margin of the tenth, of the same green hue 

 as the leaf, bordered with a pale brownish lateral line. Along this 

 line, from each segment arises a spine, beset with smaller spines. 

 The former are quite small except on segments two, three, eleven, 

 and twelve, while that on segment two is the largest of all, and the 

 pair diverge outwards and forwards like antlers, reaching the level 

 of the front of the head. The pair on the third segment is similar 

 but smaller. On segments two and three the dorsal green colour is 

 much marked by pale brown areas continued inwards and backwards 

 from the bases of the "horns" to meet mid-dorsally, making the 

 hinder sides of a triangular area whose base is formed by a simi- 

 lar line extending transversely between the bases of the "horns." 

 The first segment, dorsally, is mostly blackish, with a narrow 

 antero-posterior mid-dorsal white line. 



Posteriorly, there are two more pairs of enlarged spines, those on 

 the eleventh segment being a little larger than those in the middle 



