792 FIFTH RKPORT OF THE ENTOMOLOGICAL COMMISSION. 
vents those of tin- second brood from giving the finishing character- 
istic touches to their tubular domicile 
Fig. 268.— Tubes of tbe pine tube-building leaf- roller; natural size.— After Packard. 
The larva is .30 inch long, pale green, a little paler thau the pine 
leaves ; darker over the region of the digestive canal. Body with 
minute warts of the same color as the body, from which arise short, 
slender, pale hairs. Head pale horn color, with a darker somewhat red- 
dish patch on each side of the head; on the clypeus just behind the 
labrum a triangular spot; labrum reddish horn color. It is very active, 
climbing out of its tube and letting itself down by a thread when dis- 
turbed. The worms found at the end of September were about fully 
grown. There must be two broods of worms, as the dead chrysalids 
were found in some of the tubes. When about to pupate the worm 
spins a slight web within its tube. One larva pupated in confinement 
September 21. In Providence two pupated as late as the first or second 
week in November. Mr. Emerton informs us that he raised the moth, 
which we failed to do, but the specimen was unfortunately lost. 
We have found the young larva? one-quarter grown on the white pine 
at Brunswick, Me., in August. They had not cut off the ends, but had 
merely drawn the leaves together with silken threads. 
We also add Professor Comstock's account published in the U. S. 
Agricultural Report for 1880. 
On the loth of October the Department received from Professor Gage, of Ithaca, 
X. Y., a number of the tips of branches of white pine \Pitius strobus) which were in- 
fested with the larva- of a species of Tortricid. From six to ten of the terminal 
- were drawn together lengthwise, forming a kind of tube, which was lined in- 
side with delicate white silk. Sometime*: the leaves of one fascicle were drawn 
together, but more frequently those which were near each other from different 
The tnbe is open at each end, the outer being cut off squarely or obliquely, 
very often leaving two or more of the leaves untouched. 
This tube seems to serve as a protection to the larva, from which it comes out to 
feed upon the ends of the very leaves of which the tnbe is composed. In this way 
