124 | November, 
In form, these larvze reminded me of some of the Cherocampe ; for, 
although the thoracic segments are but slightly retractile, yet they are 
tapered off rapidly to the head, which is rounded, and smaller than the 
second segment; the rest of the body is tolerably cylindrical, just a 
little thickest in the middle segments, and rather less bulky behind, the 
anal prolegs being broad and squarely developed: the caudal horn is 
curved backwards, its point arching over the anal flap, and it is rough, 
with minute bristly points. Each segment of the body, excepting the 
thoracic and posterior, has a very broad sub-division in front on the 
back, followed by six narrow ones, though while the larva is very young 
the two hinder folds are united into a broader one, the last wrinkle 
being smoothed out; these wrinkles or folds extend as low as the 
spiracles ; just in the spiracular region there is a longitudinal somewhat 
puckered inflation, but marked only by dimples when the creature is in 
repose; a few very short bristly hairs fringe the prolegs. 
With regard to colour, I propose to describe the changes that 
occurred in the smallest of six young larve up to its adult state, before 
speaking of varieties. This larva, then, on its arrival, was about three- 
quarters of an inch in length, of a rather bright full opaque green, the 
belly and legs a little paler than the back and sides; with dorsal, sub- 
dorsal, and sub-spiracular stripes of pale ochreous-yellow: upon the 
sub-dorsal stripe on the front of each segment appeared an indication 
of an oval spot of a little deeper yellow, with the faintest possible 
outline above of black ; the horn at this time but slightly curved, semi- 
transparent, and of a reddish tint tipped with crimson; the hinder 
wrinkled portions of the segments dimly showing some whitish-green 
freckles. On moulting it changed into a deeper, brighter and purer 
opaque green dress, in which the previous design was further developed. 
The green on the back was now deeper than that of the side, and the 
belly and legs a little paler still; on the sub-dorsal stripe at the be- 
ginning of each segment the oval spots were enlarged, and tinged with 
bright orange, edged above and below with black; the end of the 
stripe towards the horn bore something of an elongate pear-shaped 
spot; a freckling of pale yellow specks distinctly appeared on the 
hinder portions of each segment as well as on the sides; the spiracles 
white, outlined with black ; the head pale bluish-green, marked with 
black near the mouth; a pale bluish-green plate on the second seg- 
ment ; hinder extremities pale green, slightly tinged with pink; the 
horn pinkish-ochreous, tipped with deep crimson. 
When a length of an inch and a quarter, or thereabouts, is attained, 
the final moult takes place, and a great change is at once apparent; the 
