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DISEASES OF THE COTTON PLANT. 
each side, about the middle of the body, and two short 
excrescences, or warts, on the extremity. In several speci- 
mens there are white spots running down each side of the 
back. The chrysalis is a little more than half an inch in 
length, and is of a brownish color. The moth measures 
an inch and three-tenths across the expanded wings, which 
are of a light, clouded-gray color, with an irregular, dark, 
oblique line running across the upper-wing, and two others, 
not quite so distinct, nearer the body. There is also a 
dark, oblique line, and another fainter one, crossing the 
under-wing ; the margins are scalloped with a darker color ; 
the antennae are feathered. 
This caterpillar feeds upon the petals of the cotton 
flower, and, when disturbed, assumes a stiff, erect attitude, 
in which it might easily be mistaken by men or birds, for 
a dried twig or stick. When about to change, in October, 
it descends into the earth, becomes a brownish chrysalis, 
and in about fourteen days the moth appears. 
The caterpillars are not very numerous, and therefore 
can do but little harm to the general crop. 
Another span-worm, somewhat similar to the above in 
shape and color, is very numerous in cotton fields, but feeds 
upon the bind-weed flower (Convolvulus), and does not 
disturb cotton. 
INSECTS FOUND UPON THE BOLL. 
During the time that cotton is maturing its seed-vessels, 
there are several insects of the " plant-bug " species found 
both upon the young and the old bolls ; but whether these 
insects have any thing to do in producing the rot, is a 
question which cannot be easily answered before further 
information shall have been collected upon the subject. I 
