e finds the roots dying with the worms inside them, as soon as 
re c'orn is up. At Millington, the larv® were seen in the roots oi’ 
ie corn m July of the present year by Mr. Finney of that nlnpp 
nd on the 26tli of July, 1832, they were likewise 7 ’ seen agal by 
r * Boardman. Mr. Bascom, of Sandwich, noticed them in the 
^rn early in August of the same year. On the 18th of that month 
; found them very abundant on Dr. Boardman’s place, in Stark 
Dunty, where nearly all remaining were fully grown ’ One was 
oticed, however, only .15 of an inch in length. They were con- 
nuously observed by Mr. F. M. Webster and myself in McLean 
ad DeKalb counties throughout the remainder of August. By Sen- 
jmber, however, they had apparently all transformed, and I find 
o mention m our notes of their appearance again during the fall 
though the roots of corn and all other suitable situations were 
loioughly seal died again and again until the middle of November 
There is consequently every reason to suppose that the eggs com- 
lence to hatch soon after the corn appears above the ground in 
iring, and that the larvae begin at once to work upon the roots 
it all get their growth and pupate before September, some cer- 
fnly maintaining the larval condition until that date. Published 
ention of the occurrence of the larvae in November in the roots of 
Lgweed and other plants, has once or twice been made; but the 
let that the slender grubs of Diptera commonly occur in’such sit- 
itions, and that these have already been several times mistaken 
r the corn root-worm, together with the fact that neither Dr. 
oardman, Mr. Webster, nor myself have been able to find these 
orms later than September of this ynar, either in the cornfields 
• m wheat, or in the roots of any plant outside the fields, after 
e most careful, protracted, and oft repeated search under the 
ost favorable circumstances, makes it likely that the reports above 
entioned were incorrect. The extreme lateness and unusual warmth 
the season this fall, would certainly have brought out the larvie 
the eggs ever hatch at that time of the year. 
The fact stated by Mr. D. S. Harris, in a letter to me, that one 
his neighbors lost a field of corn by these worms, which was 
anted about the first of July, 188*2, is the only evidence we have 
the time to which the hatching of the eggs js continued. Mr. 
arris is also very positive that he found these larvie,very abund- 
it in the stems of the garden purslane (Portulaca oleracea), and a 
vv of them also in the roots of ragweed (Ambrosia artemisicefolia) 
Ld lamb’s-quarter (Chenopoclium album), weeds growing in an 
r’ected corn-field. 
Pupa —The earliest date at which the pupa has been observed is one 
7en by Dr. Boardman, namely, the 29tli of June; but the adult beetle 
,s been seen a little earlier, and the pupa doubtless sometimes forms 
June 15. I have no record of the occurrence of the insect in this 
ate during July; but it was again reported by Dr. Boardman on the 
i of August, and was found by me abundantly on the 18th of the 
me month. In DeKalb county pupae were noticed by Mr.Webster on 
e 21st of August, and also on the 24th, and again upon the 26th, 
t were not found in any of the hills examined later than this date! 
te transformations, therefore, beginning in the middle of June are 
