36 
same stage as that above described, but in smaller numbers. I 
could hear of no appreciable injury done by them to small grain in 
this vicinity. As swarms of adults were noticed in the air, at Cham- 
paign about July _, it is probable that the fields near there were 
infested by these flying hordes. 
From the 12th to the 20th of July, I visited many fields at Pax- 
ton, at Gilman, at Kankakee, at Ashkum, and near Waukegan. I[ 
found the chinch-bug in nearly every field of corn, in substantially 
the same condition as at Champaign, much commoner in some fields 
than in others, and evidently distributed without any referenée to 
the proximity of fields of other grain. ‘Their number rapidly dimin- 
ished northward, until, at Waukegan, I found only two or three in 
half an hour’s search. A careful comparison was made at Cham- 
paign, and also at Normal, of fields which had been in corn the 
year preceding and those now in corn following some other crop, 
but no conclusive evidence was discovered of any greater abundance 
of chinch-bugs in the one class of fields than in the other. On the 
15th of July several fields were examined in McLean county. Mod- 
erate numbers of adults were found in the corn, but many more of 
the young, most of the latter having just passed the first moult. 
None were seen in the intermediate stages, and only a few eggs 
were found. The adults were consequently of the preceding brood. 
Sorghum fields in the vicinity were not infested, as far as noticed. 
On the 17th the old bugs were few in number in the fields exam- 
ined, and nearly all were young, in stages previous to the pupa. 
Their occurrence in Piatt county, on the 22d of July, is recorded 
by a writer in the Farmer’s Review of that date. On the 2th of 
that month, Mr. I’. 8. Earle wrote me from Cobden, Illinois: 
“For the past two or three weeks it has been pretty dry, and I 
have heard a great many complaints of chinch-bugs in the corn; but 
we had a good rain last night that I hope will check their work.” 
Hon. Wm. McAdams, of Otterville, in Jersey county, writes July 
30th: ‘The chinch-bugs promised some time ago to injure badly 
our corn, especially in telds adjacent to the wheat-fields. Myriads 
of them covered the rows, or several rows of corn next the wheat. 
Patches of this corn were badly affected, turned yellow and ceased 
to grow thrifty. The weather was very dry. But for some reason 
which I am at a loss to explain, the chinch-bugs thrived but poorly 
and at this writing have almost ceased to do much damage.” 
On the 7th of August, my assistant, Mr. A. B. Seymour, found 
them injuring a field of broom corn in Adams county, about two 
acres of which they had destroyed. In DeKalb county, on the 2ist 
of August, the bugs were noticed in the corn in small numbers, and 
were said to be very abundant in some places. On the 8th of this 
month, I visited the field of Bogardus and Johnson, at Champaign, 
previously referred to, and found the chinch-bugs about as abundant 
there as on my former visit. They had not seriously affected the 
crop, however, as far as I could see, as the weather im the interval 
had been extremely favorable. About four-fifths of the imdividuals 
were at this time in the pupa stage, and a very few adults were 
seen, evidently of the same brood. On the 16th of August, in most 
of the fields examined, about ninety per cent. were pupe, and many 
were winged. At Jacksonville, on the 29th, chinch-bugs (mostly 
