INSECTS AFFECTING PARK AND WOODLAND TREES 351 



is done at the tiim> the insects are all in the larval or .t^rub state, it will he 

 sufficient if the Inirk is stripped from the trees and allowed to dry. This 

 will kill practically all the insects, hut in case there are considerahle 

 numbers of beetles present, it would be wiser to destroy them at once by 



burning'. 



Bibliography 



185S Fitch, Asa. Ins. X. V. 4tli Kep'i 1^57- !'• .o-j^ 



1890 Packard, A. S. U. S. Km. Com. 5th Rcp't, i>. 711-12 



,899 Hopkins, A. D. W. Va. Agrir. Exp. Sta. I'.ul. 56, p. 284, 204. ,342. .,22, 445 



1902 Felt, E. P. U. .S. Dcp't .\gric. Div. Ent. I'.ul. 3 ■,"•«■• P- ^4-65 

 ,902 Hopkins, A. D. U. S. Dep't Agric. Div. Ent. Hul. 32, n. s. p. . .-.2 



1903 Felt, E. P. lor. Fish & Game Com. 7th Rep't, ]). 4S2-85 



Pine bark beetle 

 Tomicus pini Say 

 A light brown or nearly black beetle about 5 32 inch in length bores the thinner 

 pine burk near the middle portion of the trunk and that of the larger limbs. 



This species is about the same size as Tomicus cacographus 

 Lee. and similarly it is freciuently associated with larger forms, specially 

 with Tomicus calligraphus (i.M-m. It appears to contine its 

 attack largely to the white pine though it has been recorded from spruce 



and larch. 



This borer was breeding in large numbers Aug. 18, 1901 at Saranac 

 Inn in a small dying white pine about 18 inches in diameter. The tree was 

 abundantly infested about midway of its hight and a few beetles were found 

 almost at the top and nearly to the base. This species occurred Sep. 15 in 

 considerable numbers imder the bark of the upper portion of the trunk and 

 on the underside of the larger limbs of a large dying white pine at Lan.ing- 

 bm-g. This tree was also attacked hs r o m i c v. s c a 11 i g r a p h u s ( .erm. 

 which was exceedingly alnmdant in the thick bark near the base of the 

 trimk. Practically the same conditions as described above were fnund at 

 Bath-on-Hudson. across the river from .Albany, e.vcept that the attack was 

 more advanced. This form was also concerned in the death of a numbc-r of 



