44 HALF HOURS WITH INSECTS. [Packard. 
Figure 34, l, shows the eggs deposited along the under side 
of the midribs of the leaf; 2 , the holes bored by the very 
young larvae ; and 3 , those ea,ten by the larger worms. 
Figure 35 (a, enlarged) represents the worm when fully 
grown. It is then cylindrical, pale green, with a pale green 
head, while the segment next behind the head, and the third 
segment from the end of the body, together with the last or 
anal segment, are yellow ; the sixteen false or abdominal legs 
are also yellow ; the six thoracic legs are horn-colored. The 
body is transversely wrinkled, especially on the back, and is 
slightly hairy. The 
eyes and jaws (man¬ 
dibles) are black, and 
on the inner side of 
the edge reddish. It 
is about three-quarters 
of an inch in length. 
Previous to the last 
moult, however, and 
before it has gained its 
full size, preparatory to 
passing into the adult 
or winged condition, 
the body is covered 
with black tubercles; 
from each of which 
arises a stiff black hair. There is also a supra-anal, or 
dorsal black patch on the last segment of the body, from 
which arises a pair of black spines. On the back of the 
false caterpillar the tubercles become smooth and trans¬ 
versely oval, and arranged in two regular rows. Moreover, 
a still more important characteristic of the worm in this 
state is the jet-black head, which in the fully grown insect is 
pale pea-green. 
In*the region of Salem they may be found late in May or 
12 
Fig. 34. 
