70 FOREST ENTOMOLOGY. 



(obesus), may be considered as arboreal. The former is often recorded 

 as doing considerable damage in this country, and the latter as being 

 injurious to certain young trees on the Continent. It is, however, 

 possible that the injuries of the latter species may have been overlooked 

 in this country. 



Synojms of the Species. 1 



I. Elytra not fitting tightly into the base of thorax ; scrobes slightly 

 but plainly deflexed. 

 1. Elytra with the suture denuded at base, forming a black longi- 

 tudinal patch at scutellum S. coryli, F. 

 I T. Elytra with the suture not denuded at base. 



1. Erect hairs on elytra very distinct, if viewed sideways ; thorax 

 rugosely punctured . S. capitatus, De G. (obesus, Marsh). 



Strophosomus coryli (F.) 



Various accounts have been given of this beetle doing considerable 

 damage by feeding on the foliage of larch, oak, birch, &c, in com- 

 paratively young plantations. It has also been recorded that con- 

 siderable damage has often been done by it to several species of 

 young trees in the nursery. 



The insect, from a collector's point of view, may frequently be 

 beaten from several species of young trees. 



This beetle is from ^ to ^ inch in length, almost spherical in form, 

 and of a uniform brownish-grey colour. The antennae and legs are 

 ferruginous, elytra with moderately punctured stria?. 



Strophosomus capitatus, De G. (obesus, Marsh). 



This beetle is often found very injurious to the foliage of birch, and 

 may be beaten in showers from young trees or coppice in early 

 summer. The leaves are entirely riddled, so that where perfect 

 foliage is an important point a slight depreciation ensues throughout 

 the season. 



The beetle is very much like the preceding species, but slightly 

 smaller in size and very globular in form, a character, however, very 

 typical of the genus. 



1 Fowler, vol. v. p. 189. 



