5 
The insect affects not only the young twigs and limbs and, with young 
trees, the entire plant, but is also found upon the leaves and upon the 
(Original.) 
Fig. 4.—San José Seale: male adult—greatly enlarged. 
fruit. When abundant the fruit is destroyed. One of the most char- 
acteristic points in the appearance of the insect upon fruit is the purple 
discoloration around the edge of each scale. So far as we know this 
g \ 
f wilh 
i 
lia. 5.—San José Scale: c, adult female containing young—greatly enlarged; d, anal fringe of same— 
still more enlarged. (Original.) 
result isconfined to this one seale-insect. An infested pear is shown at 
Fig. 1,a. Upon the leaves the insects have a tendency to collect along 
the midrib on the upper side of the leaf, in one or more quite regular 
