INSECTS INFESTING WHEAT. 



283 



Fig. 270. 



cealed during the daytime and coming forth at night to feed, and 

 the other as an army worm (Fig. 269) migrating from one 

 field to another and devouring everything before it. It is in 

 this latter capacity that this insect has figured the most con- 

 spicuously. 



Fig. 269.— Army Worm— Fig. 269. 



colors, dusky, black, white 

 and yellow. 



When fully grown it meas- 

 ures a little over one inch in, 

 length, is of a dingy velvety" 

 black color, with a white line 

 on the back and four light lines on each side of the body, the 

 two uppermost lines white, the two lower ones yellow; the 

 head is yellowish, and marked in front with two curved 

 blackish lines. 



Fig. 270. — Pupa of Army Worm — color, brown. 

 The caterpillars of this species which act as 

 •cut worms, attain a larger size than those which 

 migrate from one place to another, and their 

 colors are more obscure. Three broods or more are produced 

 in one season, the last brood hibernating as partially grown 

 worms. Before pupating they enter the earth and form small 

 cells. (Pupa, Fig. 270.) 



Fig. 271. — Army Worm Moth ; 

 color of fore-wings, light reddish- 

 brown. 



The fore-wings of the perfect 



moth (Fig. 271) expands about 



one inch and nine lines, are of a 



light reddish-brown color, dotted 



iy with black, and marked near the 



center with a black dot, from 



which they derive the specific unipuncta or one-dotted. The 



hind Avings are smoky or l:»lackish. 



Remedy. — Use No. 86. 



Fig. 271. 



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