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wheat—as yet uncut. Many adults being collected from each 
situation, and separately bottled, those from corn laid eggs in the 
bottle June 15, and those from wheat did not. . Oviposition was 
but just beginning that year in Southern Illinois May 1; and as 
the interval between the laying of the egg and the appearance of 
the adult is fifty-five to sixty days (forty-five at the lowest 
estimate), the bugs breeding in corn June 14 were almost certainly 
individuals of the hibernating generation, which had not yet 
finished breeding when the ripening of the wheat warned them 
away to fresher fields. Those still remaining in the wheat weie 
probably spent imagos, about to die. The number of very young 
in the corn mentioned made it seem quite probable that this invasion 
of the field by adults of the winter brood had begun some time 
before my visit. Eggs of this same brood were taken by Mr. 
Marten from the roots of nearly ripened wheat at Albion, June 
13, 1888, brought to the office, and kept until they hatched. 
July 24, 1888, I found at Centralia a few chinch bugs’ eggs in 
corn behind the shoaths and even in longitudinal folds of the 
dead blades of the leaf, but could discover none on or about the 
roots. The imagos at this time were nearly all paired. 
At Albion, August 1, 1888, eggs were found sparingly by Mr. 
Marten behind the sheaths of corn and rarely on the upper roots. 
Tut in immense numbers on the roots of an abundant grass-weed, 
Panicum crus-galli. On one stool of this plant were eighty-twc 
eggs, and on another one hundred and seventy-seven, some 
among the roots and others behind the sheathing bases of the 
leaves. August 24, eggs were found at Albion on roots of Hun¬ 
garian grass, and on the stalks and blades of young wheat raised 
for experiment with the Hessian fly. 
Solving timothy with wheat.—Although timothy growing witl 
wheat certainty will not always protect it, both crops, in extreme 
cases, yielding to the attack, that it will sometimes do so is showr 
by the following instance reported to me by Mr. E. E. Chester, o: 
Champaign county, Illinois:— 
A field of twenty-eight acres was sown to wheat in the fall o 
1874, when the chinch bugs were innumerable throughout all thif 
region, twenty acres with timothy and the remaining eight with 
out, timothy being sown on the latter in the spring. This eight 
acre plot, like the rest in every respect except that mentioned, wai 
•overwhelmingly infested by the chinch bug, the grain at hai'ses 
yielding only seven bushels per acre, while the twenty acres, bear 
ing a thrifty growth of fall timothy, remained wholly unaffecte< 
except for a short distance adjoining the other plot, and yieldet 
an average of twenty bushels to the acre. The latter wheat solo 
as “No. 1” at $1 per bushel, and the former as “rejected'’ at fi! 
cents. 
A similar observation is reported by Mr. J. A. Kelly, of Haze 
Dell, Cumberland county, in a letter dated June 25, 1887, m whic. 
he says: “I accidentally discovered that by sowing timothy witi 
i 
