THE BEET ARMY-WORM.t 
(Caradrina exigua Hub.) 
This insect might easily be taken for the Beet Web-worm. 
The moth is a little larger than that species, spanning a trifle 
more than an inch from tip to tip of wings when spread. The fore 
wings are quite uniformly grayish brown in color with a pale spot 
about mid-way near the front margin, and the hind wings are al¬ 
most pure white except for a narrow strip on the anterior margin 
which is darker. See Plate III Pig. i. The worms are also a little larg 
erwhen fully grown being about an inch and a quarter long. They- 
are also plumper in form, greenish in color and without distinct 
white stripes, but often with quite distinct dark lateral stripes. 
See Plate III, Fig. 2. 
COLO £XPT ST A 
PLATE III. 
The Beet Army Worm ( Caradina exigua). 
1. Adult moth. 2. The Army Worm, dorsal view. 3. Pupa. 
The pupa, or chrysalis, is a good half inch long, mahogany 
brown in color and has two straight slender spines at the small 
end as shown in Plate III, Fig. 3. 
So while these two insects are much alike in general appear¬ 
ance and in the damage they do, they are easily separated in any 
stage of their development. Their habits are also quite different 
as we shall see presently. 
f This insect was treated in Press Bulletins 1 and S; Report 1?. p. 89; Report 13, 
p. 128; and Bull., «4; pp. 1 and 10, of this .Station. 
