2 
eggs in punctures in the bark of the shoot of the previous year’s growth, 
placing one or two eggs in a pit or cavity in the inner bark made by 
the beak of the mother beetle. In 
from six to ten days the eggs begin 
to hatch into small white grubs 
(larvee), which at first are usually 
found in large numbers feeding 
upon the inner bark and cambium 
(see fig. 2).. They usually work 
downward and sometimes extend 
their work into the bark of the 
2-year-old stem and base of the 
branches. By the time the larve 
have completed their development 
(fig. 1, b) they are greatly reduced 
in numbers by natural enemies and 
other causes. The survivors bur- 
row into the wood or pith of the 
terminal and excavate individual 
transformation cells, which they 
line and cover with excelsior-like 
borings. In these cells they trans- 
form to pupee (see fig. 1, ¢) and 
adults, and during July and August 
of the same year, when the adults 
are fully matured, they bore their 
way out and seek suitable places 
in which to pass the winter. 
LONG LIFE OF THE ADULT. 
From recorded observations on 
some species of Pissodes or bark 
weevils by investigators in Europe, 
and on representatives of other 
allied forms in Europe and in this 
country, it appears that an indi- 
vidual adult may live two or three 
years and will deposit eggs each 
year. 
SEASONAL HISTORY. 
Fig. 2.—White-pine weevil: Newly hatched larvee The beetles are active from about 
at work in vigorous terminal shoot of White the 1st to the 15th of May or later, 
pine. (Author’s illustration.) x ee 
depending on local conditions and 
weather. Eggs are evidently deposited during the principal activity of 
the adults, possibly during the greater part of the month of May. The 
