44 PAPERS ON CEREAL AND FORAGE INSECTS. 
Particles of the fungus were found on dead adult bugs or a part 
of their bodies—some masses of white fungus covering only a broken 
abdomen, or a thorax with wing attached, by which the insect was 
identified. It appears that the fungus had developed rapidly on 
fragments of bugs and entire bodies of the bugs, especially when 
buried beneath the soil. The indications here were that mucle white 
fungus had made its entire growth on the dead bodies of the hiber- 
nating adults which had migrated to the wheat fields. 
During the last week of July the weather was hot and dry and 
myriads of young bugs of the second generation, now feeding, sought 
shade under blades of corn, or beneath the clods at the base of the 
plant, but during this time-no fungus developed. This condition 
prevailed until the middie of August, when wet weather again set 
in, and while this did not seem to increase the amount of Sporotri- 
chum present, plenty of the fungus could be found in the soil around 
wheat stubble. However, this fungus seemed unable to infect the 
young bugs in the corn above ground, even where the cornfield 
joined the wheat stubble. 
Sumner County, Kans., seemed to be about the center of the 
Kansas-Oklahoma chinch-bug infestation. With a view of finding 
out whether or not the fungus Sporotrichum was present in other 
places over the infested area, as well as to determine the extent of 
the infestation, a trip was made during June of 1910 through central 
and southern Kansas and central and northern Oklahoma, which 
represents pretty well the area infested during 1910 in this part of 
the Southwest. Twenty localities were visited, viz: Herrington, 
McPherson, Hutchinson, Pratt,* Dodge City,* Great Bend,* Sedg- 
wick, Wichita, Winfield, Arkansas City, South Haven, Caldwell, and 
Caney, Kans.; Medford, Enid, Kingfisher, Elreno,* Chickasha,* 
Oklahoma City,* and Tulsa,* Okla. Sporotrichum globuliferum 
was found in every locality except those marked with an asterisk. 
The fungus covered bodies of the dead bugs were usually found lying 
upon the surface of the ground in wheat fields and in every case 
these were old migrant bugs, precisely as found in Sumner County, 
Kans. The seven localities where no Sporotrichum was found were 
all on the extreme outer edge of the infested area where there were 
very few bugs present. In every one of these seven localities the 
soil was very sandy, apparently not retaining moisture necessary 
for the development of the fungus. 
ARTIFICIAL INTRODUCTION.—The fungus Sporotrichum globuliferum 
was already so abundant among the bugs in Sumner County during 
the summer of 1910 that no attempt was made upon the part of the 
authors to introduce .it artificially. It seemed useless, since the 
amount already present so far exceeded any amount which could be 
introduced. However, a number of farmers anxious to try this 
