REPORT OF THE COMMISSIONERS OF FISHERIES, GAME AND FORESTS. T>73 



Description. The parent insect is a modest gray beetle about half an inch long 

 and marked with red lines and black spots, as shown at figure 4 of plate 3. The 

 specimen represented is an unusually well colored individual, the dotting with black 

 and portions of the red lines being frequently quite indistinct. The flattened, leg- 

 less, whitish grub is shown curled in its burrow at figure 1 and the same extended at 

 figure la. The pupa, within its elongated pupal cell, is represented at figure 2. It 

 is a yellowish white, about one-half an inch long, and with slender antennae curled 

 along either side and bent back over the breast. 



Fig. 7. Elms injured by Saperda and Magdalis. Berlin, Mass., May 30, 1900. Photo by J. A. 

 Otterson. 



Life history. The time necessary for this insect to complete its life cycle is 

 unknown but reasoning from analogy, it seems probable that it is two and possibly 

 three years. The larvae that are to transform to beetles in one season change to 

 pupae sometime about the middle of May or earlier, and the beetles begin to appear 

 the latter part of that month and continue to emerge for some time, examples having 

 been taken as late as August 24. The eggs are deposited upon the bark in June, 



