54 
SOME INSECTS INJURIOUS TO TRUCK CROPS. 
DESCRIPTIVE. 
The adult is a noctuid moth, and while the larva is quite readily 
referable to the genus Prodenia, the moth has little of the appear- 
ance of our other two North American species." 
The moth. — The adult or moth has a wing expanse of nearly 1J 
inches (33-38 mm ) ; the fore-wings are dull gray, sprinkled and 
dotted with brownish and black scales forming a pattern as shown 
in figure 8, d. There is considerable variability in these markings, 
some individuals having a strongly marked reniform spot, a very 
prominent blackish posterior marginal line, and a similar black line 
'ig. 8. — The semitropical army worm {Prodenia eridania) : a, Egg-mass on leaf; b, 
egg, much enlarged, showing lateral view at right and top at left ; c, section of egg ; 
d, moth ; c, dark form of larva nearly grown ; /, g, larva, full-grown, a, d-g, En- 
larged ; 6, highly magnified; c, more magnified. (Original.) 
on the latero-posterior margin. Individuals also occur in which 
there is a straight, broad, jet-black dash or band beginning at the 
middle of the fore-wing and extending to the lateral margin. This 
is the nigro fascia of Hulst. The hind- wings are pearly white above, 
this pearly luster being still stronger below. The body is brownish 
gray and the antenna? are yellowish brown. 
The darkest forms of this species are marked very much as in the 
genus Acronycta. 
The eggs. — The eggs are deposited in irregular masses, as shown 
in figure 8, a, closely placed together, sometimes in two layers and 
a Prodenia otviithogaUi Guen. ("cotton cutworm") and P. commelinw S. & A. 
