STATE AGRICULTURAL SOCIETY. 
787 
TOBACCO-WORK. VARIES GREATLY IK COLOR. THE PUPA DESCRIBED. 
on its upper and another on its lower side, the two stripes uniting together 
forward of it; and at the anterior end a faint white streak is commonly 
visible for a short distance forward of the lower end of the first oblique 
stripe. At the hind end of the body is a flattened triangular space which 
is margined with white upon each side. The head is green, sometimes 
with a vertical black streak upon each side. The anterior legs are dusky 
towards their tips, and on their inner sides are a few small black bristles. 
The soles of the pro-legs are black, as is also the curved horn at the end of 
the back. 
This larva is liable to vary in its colors to a surprising extent. Many 
persons from noticing in their gardens worms which are so totally dissimi¬ 
lar in their colors confidently suppose there is two or three different spe¬ 
cies of them infesting their tomatoes. And the same varieties occur upon 
the potato, and probably also upon tobacco. Its most common color is 
leek green. From this it varies to lighter yellowish green, and on the 
other hand to various shades of darker brownish and blackish green. In 
other instances the green color wholly vanishes, and the worm is pale or deep 
amber brown, blackish brown, purplish black or pure black. In these 
brown and black varieties the head sometimes retains its normal green 
color, but is usually the same color with the body. The dots upon the 
skin and the oblique stripes along the sides are very often light yellow 
instead of white; aud where the ground color of the worm is dark brown 
or black, these markings are always yellow, or sometimes pale pink red. 
The breathing pores are black, but sometimes dark red or dull yellow, 
and are surrounded by a ring of white or pale blue, which is usually 
inclosed in a second ring which is sometimes brown, sometimes black. 
The curved tail-like horn, so far as my observation goes, is the only part 
which is constant in its color, this being always black. 
The Pupa or clirysalis is of an oval form, its opposite sides nearly 
parallel through most of its length, and tapering at each end. It is four 
times as long as thick, its length being 
two to two and a half inches. It is of 
a chestnut brown color, paler in some 
places and blackish in others. The 
anterior end is irregularly narrowed and 
Tobaooo-worm Pupa. at its apex is prolonged into a remarka¬ 
bly long cylindrical tongue-case the thickness of a coarse knitting-needle, 
■which projects downward and is curved backward at a distance of nearly 
a fourth of an inch from the surface of the breast, becoming straight 
through the last half of its length and reaching half the length of the 
body. It is thickened and bluntly rounded at its end, which slightly 
touches the surface of the body and is firmly soldered thereto. It is 
evenly ribbed transversely, appearing as though the inclosed tongue were 
divided into a number of short joints like the antcniuc, and along its 
outer and its inner sides are two elevated lines extending its whole 
length. The wing-sheaths are smooth and glossy, with faint elevated 
lines marking the veins of the inclosed wings. They are firmly soldered 
