BREEDING EXPERIMENTS. 141 
from 8 to 1- inches below the surface. The larvae were found in cells 
about one-half inch long, and in every instance bordered a rootlet about 
one-eighth inch in diameter. In one instance the beak of the insect 
was inserted in the root and the punctures of the beak were ooticed in 
other cases. Under oak trees a few yards distant about which no i 
had been distributed, no larva* of the 1880 brood were found, although 
a few apparently of the brood of 1885 were found. The material 
referred to the 1885 brood is evidently .the natural stock of the soil. 
A subsequent examination was made April 14, 1897, the diggings 
being made under trees about which the eggs from Mineral Springs. 
Ohio, were distributed July 29, 1889. A few spadefulls of earth thrown 
out resulted in securing six larva* under one tree and four under 
another. These larvae were in the fourth stage, as indicated elsewhere. 
The adults from this brood should appear, barring accidents, in 1906. 
