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DISEASES OF THE COTTON PLAIJT. 
Another Caterpillar 
Is of the same habits, size, form, and color, except that 
it has a white longitudinal line running down each side. 
The chrysalis, however, is of a dark-brown color, whereas 
that of the preceding is always green, with dark-brown 
markings only on the thorax and back. The moth also is 
similar in shape and color — so much so, indeed, as to war- 
rant a belief that they may be different sexes of the same 
species. 
Mr. Peabody, of Columbus, states that this caterpillar 
was very destructive to the leaves of turnips in 1854. 
Several which were placed in confinement, were attacked 
by a singular and fatal disease. However healthy they ap- 
peared at first, they gradually assumed a lighter color, 
ceased feeding, became swollen, and, suspending them- 
selves by the hind feet to any projecting twig, very soon 
died and became putrid and black. 
These caterpillars were quite plentiful in the vicinity of 
Columbus, but were not found in Florida the following 
year. They cannot be classed among insects very injurious, 
as they were not sufficiently numerous to harm the cotton. 
The Small Cotton Span- Worm. 
A very small looper-caterpillar, or span-worm, about 
seven-tenths of an inch in length, of a brown or greenish 
color, with five yellow and black markings or bands on the 
middle segments, and of about the thickness of a knitting- 
needle, was very numerous on the blossoms of cotton in 
Georgia during the month of October. 
These caterpillars have six pectoral, with only two 
ventral and two anal feet ; their mode of progression is by 
