108 



NATURAL, HISTORY OF INSECTS. 



274), and the Strawberry Crown-bore^- (Fig. 275), belong to 

 this Family. 



TRIBE II. Short-horned Borers. In these the head is 

 not prolonged into a snout; the body is usually short and 

 cylindrical; the antennae are clavate or capitate, and but little 

 longer than the head; the joints of the feet are not dilated. 



These insects are of small size, and usually of a black or 

 brown color. The larvae bore winding galleries in the solid 

 wood and are frequently very destructive, especially to forest- 

 trees. The insects belong to the Family of Short-horned 



Fig. 276. 



Fig. 277. 



Borers (Scolytidx). The Pear-tree Scolytus (Fig. 276) and 

 the Chestnut-bud Beetle) Fig. 277), belong to this Family. 



TRIBE III. Long-horned Borers. In these insects the 

 body is elongated and the antennae are long and tapering, 

 usually longer than the thorax, and frequently as long as the 

 entire body; the males commonly have longer antennae than 

 the females. The sides of the thorax are generally furnished 

 with spines or teeth. 



Fig. 278. 



A few of these Beetles have very short wing-cases, like the 

 Rove-beetles, but the wings are not folded up and concealed 

 beneath the wing-cases, as they are in the latter insects. 



