844 
[Assemble 
The larva when fall grown measures about half an inch in length. It is al. 
most cylindrical, sixteen-footed, of a very pale green color, divided into fourteen 
segments by rather deep wide transverse constrictions. It has two rows of elevated 
white spots along the back, and one along each side, each segment having one spot 
in each row, or four spots in all, and between the spots is a smaller white elevated 
dot, and another similar dot below the lower spots. From each of these elevated 
spots and dots white bristles of different lengths stand out in all directions. 
Two of these worms which I inclosed in a breeding cage had 
changed to pupte on the 25th of June, one suspending itself from 
the gauze top of the cage, and hangiftg obliquely downwards, the 
other attaching itself to the glass side of the cage, having first 
spun several short threads here and there upon the surface of the 
glass as if to ascertain whether they would adhere to it, and then 
making a small patch of numerous threads, into which to insert 
the minute hooks at its tail, whereby to suspend itself. The 
relics of its larva skin, forming a little lump of fine hairs, remained 
adhering to the glass, downwards and to one side of the spot 
where the pupa was attached, being as far off as the length of the 
insect enabled it to reach. After releasing itself from this skin 
the pupa had turned to the opposite side, and thus remained 
hanging stiffly downwards and outwards from the surface of the 
glass, resembling the dead fragment of a little scraggy twig. It 
is of a slender conical form, obliquely truncated at the head, and 
has two long compressed horns placed side by side and jutting 
upwards from the middle of its back. Numerous smaller pro¬ 
jecting points and ridges diversify its surface, a particular de¬ 
scription of which would occupy a page or two. I therefore limit 
myself to a recital merely of some of its most prominent marks. 
The chrysalis is about 0.35 long and 0 08 in diametor. About the mouth and 
head are divers raised lines and projecting angular points. The obliquely truncated 
face is convex or gibbous in the middle, and here commence two elevated carina) or 
sharp edged ridges which extend backwards nearly parallel with each other to the 
middle of the back, where they shoot upwards into the compressed horns already 
spoken of. Their length is equal to half the diameter of ilie body Viewed laterally 
their outline is egg-shaped, with the edges irregularly toothed and the apex drawn 
out into a long sharp thorn-like point. Forward ol these horns the raised lines are 
more elevated in the middle of each segment, where they present two small tooth¬ 
like spipes, the anterior one larger, and also two short diverging white bristles which 
are club shaped or enlarged towards their tips. And on the five abdominal segments 
next back of the horns and in a line with them is a row of spines, one on each side 
of each segment near its middle, which spines are’inclined forward, and each has a 
