T RE E IN S E € aes 
species. Many burrows fre- 
quently start from the same 
wound in the trunk, the num- 
ber increasing from year to 
wear, 
48. Habits. The large 
moths, of a pale gray color, 
mottled with black, appear 
during June and the early 
part of July. They fly only 
by night, and hide during the 
day upon the rough bark with 
the wings folded over the back. 
The color of the moth, in this 
position, and the color of the 
bark, blend in such a way as 
to make them hard to find. 
49. The female lays 300 
or more eggs, placing them in 
crevices in the bark or around 
wounds made by preceding 
generations of the larve. The 
young larve feed for a time 
upon the inner bark, but 
Courtesy New York State Museum, gradually work deeper into 
Fig. 2 the heart-wood, several suc- 
Work of the carpenter worm in ash. cessive generations feeding 
After E. P. Felt. within the same tree. Fitch 
states that he found the larvee 
feeding only in the sound wood and never in decaying tissue. 
50. The larvee when full grown are fully three inches long, 
and are of a livid, reddish color, ‘greenish beneath, and witha black, 
shining head. The body is somewhat flattened, with scattered, 
long, fine hairs. They live within the tree for three or four years. 
The pupa is also found within the burrow, and works itself half 
way out the exit hole before the skin splits dow n the back to liber- 
ate the moth. The cast skin remains in this position after the 
moth flies away. 
$1. Control. While this is considered to be one of the most 
destructive of our native borers, it is more easily controlled than 
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