94 INSECTS INJURIOUS TO VEGETATION. 



finely punctured with brown, there are four ochre-yellow lines 

 on the head, and three on the top of the thorax, the scutel is 

 also ochre-yellow, and there are several irregvilar lines and spots 

 of the same color on the wing-covers. It is from one inch to 

 an inch and a quarter in length. This beetle closely resembles 

 the European Saperda carcharias, which inhabits the poplar; 

 and the grubs of our native species, with those of the broad- 

 necked Prionus, have almost entirely destroyed the Lomb'ardy 

 poplar in this vicinity. They live also in the trunks of our 

 American poplars. They are of a yellowish white color, ex- 

 cept the upper part of the first segment, which is dark buff. 

 When fully grown they measure nearly two inches in length. 

 The body is very thick, rather larger before than behind, and 

 consists of twelve segments separated from each other by deep 

 transverse furrows. The first segment is broad, and slopes 

 obliquely downwards to the head ; the second is very narrow ; 

 on the upper and under sides of each of the following segments, 

 from the third to the tenth inclusive, there is a transverse oval 

 space, rendered rough like a rasp by minute projections. These 

 rasps serve instead of legs, which are entirely wanting. The 

 beetles may be found on the trunks and branches of the vari- 

 ous kinds of poplars, in August and September; they fly by 

 night, and sometimes enter the open windows of houses in the 

 evening. 



The borers of the apple-tree have become notorious, through- 

 out the New England and Middle States, for their extensive 

 ravages. They are the larvae of a beetle called Saperda bivit- 

 tata* by ]VIr. Say, the two-striped, or the brown and white 

 striped Saperda; the upper side of its body being marked 

 with two longitudinal white stripes between three of a light 

 brown color, while the face, the antennae, the under side of the 

 body, and the legs, are white. This beetle varies in length 

 from a little more than one half to three quarters of an inch. 

 It comes forth from the trunks of the trees, in its perfected 

 state, early in June, making its escape in the night, during 

 which time only it uses its ample wings in going from tree to 



* Saperda Candida ? Fabricius. 



