FAMILY CERAMBYCIDiE. 119 



This species I found in many parts of this State in June, and supposed it common. Al- 

 though very peculiarly marked, I have been unable to satisfy myself as yet what name it 

 has received. 



Clytus . (Plate viii, fig. 1.) 



Color rufescent, covered with prostrate hair : head black ; thorax grayish, from the lighter 



colored hair : elytra purplish brown, with three bands of lighter, the basal obscure, 



the apicial ones confluent on the elytral suture. All the thighs dilated and robust. 



This Clytus is obscurely marked ; and though it may be described, it differs much from 



those in my possession, and from accessible descriptions. The bands spoken of are brought 



out more distinctly in the figure than they appear in the specimens : the same remark 



will apply to the round black spot upon the base of the elytra ; and, besides, I may add 



that the side of the trunk is marked by a distinct luteous spot, and another smaller one 



at the base of the middle legs. 



Genus SAPERDA ( Fab.). 



Head vertical, as broad as the thorax, slightly compressed at the sides or cylindrical, 

 destitute of lateral spines : antennae filiform, and terminating in an elongated joint. 



The Genus Saperda contains several species known to be injurious to the interests of 

 husbandry. Most of them are rather sluggish in their mature state, manifest far less 

 activity than many other insects, and rarely attempt to escape when in danger of being 

 captured. Some of them frequent flowers, but I belive all deposit their eggs upon trees or 

 shrubs. When the eggs are hatched, the young larvae penetrate the bark and wood, and 

 injure very materially the growth of the tree in which they reside ; and as they are ge- 

 nerally two or more years in coming to maturity, their hurtful effects are proportionally 

 augmented. The larvae feed upon the wood as they penetrate it, and derive their nutriment 

 from the juices it contains. Their excrement appears like sawdust ; retaining in fact the , 

 color of the wood, after it has sufficed to nourish them, and has passed through their 

 bodies. Their form is that which is common to the tribe, the rings near the head being 

 wider than those of the rest of the animal. The head is usually scaly, and is retractile in 

 part within the first ring : it is supplied necessarily with strong jaws, in order that the 

 insect may eat its way into the wood. Their food is constantly before them in their path ; 

 and it is a very curious fact, that though they may make their way into the wood, yet 

 they usually direct their course towards the outside when about to change from the larva 

 to the imago state. The larvae are without legs, soft, white or yellowish white, elongated, 

 and more or less flattened. 



One of the most destructive of these species is the larva of the Saperda Candida. This 



