96 COLEOPTERA. 



CERAMBVCIDyE, or LONGICORNIA. 



These beetles " are readily recognized by their ob- 

 long, often cylindrical bodies, the remarkably long, fil- 

 iform, recurved antenna.*, and the powerful, incurved 

 mandibles. Their eggs are introduced into cracks in 

 the bark of plants by the long, fleshy, extensile tip of 

 the abdomen. The larvre are long, flattened, cylin- 

 drical, fleshy, often footless, whitish grubs, with very 

 convex rings, the prothoracic segment being much 

 larger and broader than the succeeding, while the head 

 is small, and armed with strong, sharp mandibles, 

 adapted for boring like an auger in the hardest woods." 



(i, 493)- 



The larvae live from one to three years before trans- 

 forming. They transform cither within their burrows 

 or within a cocoon made of chips, at the end of their 

 burrows. 



Rliaginin lincatmn Oliv. — Common in old pine trees 

 at Ithaca. The larva; bore in the wood, and undergo 

 their transformations within cocooos, made of chips, 

 between the bark and the wood. The pupre change 

 to beetles in the fall, but do- not leave the tree until 

 spring. (2, n6). ^ 



The Round-headed Apple-tree Borer, SapcrdaQ^i- 

 dida Fabr. {^crda hivittata Say). — Eggs laid on the 

 bark of the tree near its base. Larva: bore through 

 the bark into the sap-wood, where they at first make 

 a disk-shaped burrow ; afterwards they make a tunnel 

 in an upward direction in the harder wood, coming to 

 the surface several inches above the place they entered. 

 The larva; live three years. They change to pupa; 



