INSECTS AFFECTING PARK AND WOODLAND TREES 



675 



Leptura subhamata Rand. 



A rather slender somewhat triangular beetle with a subtriangular spot near the 

 middle of the outer margin of each wing cover, occurs on hemlock. 



This beautiful insect may be easily recognized by its yellowish elytra 

 with a subtriangular spot near the middle of the outer margin. It was 

 taken on tamarack at Lake Clear Junction July 8, 1903. 

 The trees had been killed by a fire, and this species was 

 evidently about to oviposit on them. This beetle has 

 been taken by Mr Harrington on oak and also from 

 a beech log. 



This form was described from the White mountains, 

 and has been recorded from New Jersey, by Dr Smith, 

 on the authority of Mr Leng. It is also listed by Mr 

 Ulke, from the District of Columbia, and six examples 

 were taken by Dr John Hamilton, in southwestern 

 Pennsylvania. This, in connection with its occurrence F ' s " h^ma'a,'" enlarged 

 in New York State, leads us to believe that it is some- 

 what generally distributed in the northeastern United States and probably 

 ranges into Canada. 



Cedar tree borer 



Hylotrupes ligneus Fabr. 



A brownish beetle from to nearly )4 inch long, with two large, blue patches at the 

 base of the wing, bores in the larval stage in cedar. 



This species is common in northwestern Maine, according to Dr 

 Hopkins, who states that its slender, whitish bark and woodboring grub 

 excavates winding burrows in the bark and surface of the wood of living 

 arbor-vitae, causing the death of trees and serious defects in the wood. 

 Mr Fall states that this species is common in southern California, where it 

 depredates on pine, and that a nearly black variety occurs only on fir wood 

 piles situated in more or less shady forests. He states that the typical form 

 of this species may be taken on pine and spruce wood piles in sunny 



