THE POPLAR TREE BORER. 



93 



forty-seven European lindens in the former square alone, where 

 there now remain only a few American lindens, and these 

 a good deal eaten." In New England this beetle should be 

 looked for during 

 the first half of 

 June. 



The Poplar tree 

 is infested by an- 

 other species of Sa- 

 perda (S. calcarata). 

 This is a much larger 

 beetle than those 

 above mentioned, 

 being an inch or a 

 little more in length. 

 It is gray, irregu- 



"larly striped with 



107. Larva of the Plain Saperda. 



ochre, and the wing-covers end in a sharp point. The grub 

 (Fig. 105 a; &, top view of the head; c, under side) is about- 

 two inches long and whitish yellow. It has, with that of the 

 Broad-necked Prionus (P. laticollis of Drury, Fig. 106, adult 

 and pupa), as Harris states, "almost entirely destroyed the 



Lombardy poplar in this vicin- 

 ity" (Boston). It bores in the 

 trunks, and the beetle flies by 

 night in August and Septem- 

 ber. We also figure the larva 

 of another borer (Fig. 107 c; 

 a, top view of the head; 6, 

 under side ; e, dorsal view of 

 an abdominal segment ; d, end 



of the body, showing its peculiar form), the Saperda inornata of 

 Say, the beetle of which is black, with ash gray hairs, and with- 

 out spines on the wing-covers. It is much smaller than any of 

 the foregoing species, being nine-twentieths of an inch in length. 

 Its habits are not known. We also figure the Locust and Hick- 

 ory borer (Fig. 108; , larva;- 6, pupa), which has swept off the 

 locust tree, from New England. The beautiful yellow banded 

 beetles are very abundant on the flowers of the golden rod in 

 September. 



108. Locust Borer. 



