New York AGRICULTURAL EXPERIMENT STATION. 273 
insect. In every case it was confined almost entirely to the 
trunks and lower limbs. 
- Only peach trees were severely injured. Plum and apple trees 
in the immediate vicinity were uninjured. 
Indications of injury to small branches and twigs—Iniury to the 
small branches and twigs was indicated in two ways: First, by 
the dead leaves caused by the beetles boring into the buds, 
Plate XXXVII, Figs. 1 and 2; and second, by the drops of sap 
that exuded from the burrows in the sapwood, as shown natural 
size at Fig. 3. . 
As previously stated, very few of the peach trees in the orch- 
ards near Youngstown that were infested on the trunk and 
branches showed any evidence of the insects’ work in the smaller 
branches and twigs. On the contrary, the peach, plum and 
cherry trees examined, both in Monroe County and at Geneva 
and vicinity, were very slightly infested except in the small 
branches. 
Character of the channels in the small branches.—These burrows 
were of two kinds, the very short ones which were mere punctures 
of the thin bark and the larger ones through the bark and for 
from half an inch to an inch in the sap wood. In some cases 
from two to nine punctures leading to each burrow were found. 
Many of these burrows, opened September 20 and later, were 
empty, others contained eggs; and in a few cases young larve 
were found. 
NOTES ON LIFE HISTORY. 
Observations upon the egg laying habits —Eggs were first found 
September 24, by Mr. P. J. Parrott while examining an infested 
plum tree. Upon subsequent examination of infested plum and 
peach twigs many of the burrows were found to contain eggs. 
The number of eggs varied from one to twelve. Nine was the 
largest number of unhatched eggs found, but in one burrow Mr. 
Parrott found twelve young larva, indicating that twelve eggs 
had been deposited there, — 
18 
