68 



sembling the preceding, is shown in figure 50, taken from Riley. 

 The color is black, and the wing-covers are dotted with little pits. 

 It bores in the bark of the elm and ash. 



Diilaritis brevilifiens^ Sar. 



This is one of the largest of the elm infesting insects. The per- 

 fect beetle, figure 50, is nearly an inch long, with large, stout legs. 

 The wing-covers are relatively smaller than in most beetles, and 

 do not cover the end of the abdomen. The color is dark blue. 

 Its lai-va bores into dead wood, and cannot, therefore, be called 

 injurious, unless it should be destructive to timber. 



Fignre 51. 



Dularius btevilineus. Enlarged. 



Of all the beetles the most mischievous to the elm, and one of 

 its worst foes in this region, is the 



ELM BORER. 



This beetle, shown with its larva in figure 52, is somewhat like 

 the common apple tree borer in its general form and appearance, 

 though it is rather smaller, and difterently marked. It may be 

 recognized without difficulty by the peculiar dull red line which 



