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>n the 25th of that month. The dates of capture of a large col¬ 
ection obtained by miscellaneous work during two successive years 
n Central Illinois, ranged from July 13 to August 24. 
The Yellow-headed Cutworm 
(Hcidena arctica, Boisd.) 
This is likewise apparently a single-brooded species, occasionally 
very injurious to corn, still destructive, according to our observa¬ 
tions, the last of May, at which time, however, many of the 
Larvae are full grown. We have collected the imago at Champaign 
in the middle of July. 
The larva is grayish white (often with a smoky tinge), with 
transluscent skin, easily showing the tracheae, the movements of 
the heart, and the tubular Malpighian bodies within. The head 
is bright reddish brown or bay, darker than the cervical shield, 
which is a pale, dirty yellowish brown: Mouth parts yellow; jointed 
legs yellow, darker at tips. 
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