496 SEVENTH REPORT OF THE FOREST, FISH AND GAME COMMISSION. 



The burrows of this insect extend into the wood vertically for a distance of yi 

 an inch and from this main gallery several branches arise at different depths which 

 extend in a direction approximately parallel with the lines of growth, each lead- 

 ing into a scries of vertical brood chambers, figure 12. 



Woodborers. There are many forms, beside the preceding, which might be 

 included under this heading. The larvce of many insects bore very largely in the 

 wood of white pine but in this brief paper only the following will be noticed in this 

 connection. 



FIG. 12. GALLERY OF GNATHOTRICHUS .UA TERIA RIUS IN PINE. 



AFTER HUBBARD AND HOPKINS, U. S. DEPT. ACK., DIV. ENT. BL'L. 7, N. S. '97. 



WHITE ANTS. 



Tcrmcs Jiavipcs Kollar. 



The common wood borers are also aided in the work of destruction by \\hite 

 ants which, in some localities, are very abundant. This was especially true on Long 

 Island where many of the hard pine stumps had been extensively tunneled by these 

 industrious insects. One small tree met with at Karner near Albany had been 

 infested to such an extent that ant galleries were observed over four feet from the 

 crround. The tree was a small one and in the course of a few years would become 

 so weakened as to fall in a severe storm. 



INSECTS ATTACKING THE SMALLER LIMBS. There are certain forms which 

 confine their operations almost entirely to the smaller limbs of our various pines 

 and for convenience sake they are grouped together. Some of the most important 

 of these are the following: 



