186 DISEASES OF THE COTTON PLANT. 
those very injurious, as they do not appear in numbers 
suflBcient to injure the general crop. 
There is a red, hairy caterpillar of like characteristics, 
that sometimes eats the cotton leaf, but which it is un- 
necessary to describe here. 
The Cotton AB,GTiA.—{Arctia ?) 
A species of arctia was also found in Tallahassee, in 
the month of July, upon the cotton plant ; but, most prob- 
ably, the parent moth had wandered away from its more 
natural food, as the identical kind of caterpillar was found 
at the same time upon the brambles by the roadside near 
that place. The plant attacked, however, was in the mid- 
dle of the field, and not near any brambles or weeds, on 
which the eggs might have been laid. The bare stem and 
branches of the cotton were covered with the unsightly 
web, and all but a few straggling Caterpillars had dis- 
appeared, having probably webbed up preparatory to the 
final change. 
The full-grown caterpillar is from an inch and one- 
tenth to an inch and three-tenths in length ; the back dark- 
colored, and covered with tufts of long, blackish-gray hairs ; 
the sides are of a pale-greenish color, with a line between 
the black and green distinctly marked ; the six pectoral feet 
and head are black, and the ventral and two anal ones are 
green. 
The chrysalides were formed on the 24th of July, in 
cocoons or loose webs, intermingled with their own hair, 
and spun under the loose leaves. They were nearly half an 
inch in length, short and thick in form, and brown in 
color. The moths came out in about twelve or fourteen 
days. 
