137 
bodies were \aken from under a single stool at this point; but for 
every dead bug collected, several hundred live ones were seen. 
The fungus-covered insects were about equally distributed through¬ 
out F and G, along a line north from a; but to the south of this 
point the dead bugs were not so abundant, while, on the other 
hand, the live insects were just as numerous. This was perhaps 
due to the fact that this was the highest portion of the field, and 
was considerably dryer than at a and points further north. The 
chinch-bugs had spread over about three acres, and had killed all 
the grass west of the wavy line passing through F and G. The 
grass was parched and brown, and the victorious chinch-bug hosts 
were steadily advancing eastward. 
A careful examination of the grass west of a, revealed the fact 
that the number of bugs dead with the fungus increased as the 
sorghum (E) was approached; that is, the number of fungus-cov¬ 
ered bugs counted on a given area—one square foot—constantly 
increased until the point 6 was reached, at which place the great¬ 
est numbers were observed, and then gradually decreased, practi¬ 
cally disappearing at c, as we passed into the corn (D). At b 
two hundred and seventy-one whitened bodies were counted on 
the surface of the ground scattered over a single square foot. 
The ground at this point, however, was thickly strewn with sor¬ 
ghum leaves and was quite damp. 
Another interesting point observed at this time was the com¬ 
parative age of the fungus along a line from a to c. At a , as 
already indicated, the fungous growth was fresh, and in some in¬ 
stances the mycelial threads were but just starting, being but 
barely visible on the bodies of the dead bugs. As we approached 
b, however, it became evident that the fungus on the insects was 
of a much older growth. At a point midway between a and b, 
bugs dead with the fungous disease were found, from which the 
spores were not easily detached, while at b the spores were easily 
shaken off, and in most cases the ground where a dead bug had 
been lying was so dusted with them as to present a whitish, 
moldy appearance : From b to c the fungus was of a still earlier 
growth. Along a dead furrow at the latter point, several dirty 
whitish, moldy spots on the surface of the ground under a fallen 
corn leaf or stalk, or other rubbish, was all the evidence that 
could be found that the fungus.had been present. 
Comparatively few chinch-bugs dead with the white fungus were 
found in corn B, C, H, I, and J, not more thsn' half a dozen 
being taken from each field. Their whitened bodies were perhaps 
more, abundant in corn H along the south side in the immediate 
vicinity of the meadow G, than in any of the other fields exam- 
lmed. Live chinch-bugs, mostly pupae and adults, were quite 
numerous throughout all these fields. All the meadows adjoining 
corn on this farm were more or less injured from the attacks of 
the chinch-bug, but little or no fungus was found in any of them 
except those already mentioned, F and G. Only an occasional 
live insect was seen in the wheat stubble A, in which the infec¬ 
tion had been placed, and in the stubble of oats and wheat south 
and east of the house. 
