37 
adult) were found in all the fields, usually, however, in trivial num- 
bers, collected largely in the silks at the tip of the ear, but also 
occurring on the stalks. ‘A few were noticed in the third and fourth 
stages, but none younger than these. But in one corn-field visited 
here, the bugs were swarming on all parts of the stalks, ears, and 
leaves. Scores were collected in the silk at the tip of every ear. 
Seventy-five per cent. of those found in this field were adults. 
Numerous dead ones were seen upon the leaves and stalks and also 
in the silk, embedded in a white fungus, which frequently entirely 
covered the specimen. On the 380th, at Jerseyville, in Jersey county, 
a few! occurred on the corn, of all sizes, from the adult down to 
those just hatched. ‘These young were unquestionably the descend- 
ants of the adults found with them, and consequently represented a 
later brood than that hitherto discussed. Large numbers of fresh 
pupa skins were seen, and many of the adults had but just moulted. 
A few dead specimens appeared, and a few of these had been 
attacked by the same fungus as that noticed at Jacksonville. 
On the 4th of September, at Normal, nearly all were adults, and 
occurred chiefly in the ears, both in the silk at the tip and behind 
the husks. At Mason City, on the 6th of September, they were 
numerous, but not abundant, upon the stalks of the corn and also 
in smaller numbers in the silks. On the 15th of this month, adults 
‘were noticed flying in small numbers at Normal. On the 16th, those 
remaining in Mr. Conner’s field were all winged, occurring behind 
the sheaths and in the tips of the ears. Very few were present here 
however. They seemed to have generally abandoned this field as 
fast as they acquired wings. During a trip to Southern Illinois, 
they were found sparingly from September 9th to 25th, at numer- 
ous* points, from. Villa Ridge to Vandalia. Nearly all were adults, 
the remainder being in the preceding stage. Those noticed were 
between the leaves and the stalk, and in the husks of the ear. A 
few were likewise seen at Carmi, on the first of October, all adults. 
‘On the 25th of September, at Normal, they were scarce in all the 
fields examined, chiefly nestled among the husks, sluggish and 
apparently not feeding. On the 3d of October, numbers were found 
upon the wing, and they were also abundant in the University 
eround, upon grass and weeds. They were now rather rare in the 
corn-fields, having evidently scattered in search of winter quarters. 
On the 17th, a very few adults were seen behind the sheaths of 
corn, but none could be found elsewhere, not even about weeds or 
under rubbish. 
On the 7ih of November a careful search was made in corn that 
had previously been badly infested by them, but none were to be 
seen upon the stalks or under the rubbish on the ground in the 
field; in the thickly-matted grass adjacent only a single specimen 
was discovered by fifteen minutes’ search. On the i4th of this 
month the weather was cold and raw, and the ground was frozen 
about the hills of corn from an inch to an inch and a half in 
depth; a very few bugs were now found in the crevices of the 
eround, among the roots near the surface. At Champaign, on the 
1 th, I visited again the field of Bogardus and Johnson, making a 
eareful search for hibernating individuals about the stalks, under 
“the weeds in the field, and beneath the rubbish collected about the 
