OBSERVATIONS. 



The spots of the elytra appear at first view to 

 be formed and located differently in this from 

 those of the preceding, yet by dilating the two 

 central elytral spots of the preceding insect trans- 

 versely, and enlarging the posterior spots in a 

 posterior and transverse direction, we shall be 

 able to exhibit an arrangement precisely con- 

 formable to that of the present variety. 



The spots of the elytra in this variety are sub- 

 ject to some variations; the transverse spot on 

 the middle of the elytra is divided into two on 

 one of my specimens; the posterior common 

 spot is subcordate, being much narrowed behind 

 in another, and in a third is a black spot on each 

 elytrum, insulated from the common terminal 

 spot which is much narrowed. 



This insect is a native of Missouri and Ar- 

 kansa, as well as of the atlantic states. 



The lower left figure ; the natural size is re- 

 presented by a line, above which is an enlarged 

 view of the head. 



PLATE IX. 



