208 [Februwy, 



Fourth Geoup. — Thorax moderately rounded at the sides. Eyes 

 little prominent. Elytra with the sides almost parallel, and the ex- 

 tremity regularly rounded. 



A. Femora black. 



1 . Elytra oval. 



* Elytra with the extremity of the 5th interstice 

 sub-elevated, forming a Uttle callus. 



(no British species.) 

 ** Elytra with level interstices, and no apical 

 callus. 



a. Thorax finely and thickly punctured puncticollis. 



2. Elytra oblong. 



* Thoi'ax longer than broad (no Bi-itish species.) 

 ** Thorax the same length as, or shorter than, 



its breadth line atus. 



B. Femora red (no British species.) 



EiFTH Gruoup. — Thorax moderately rounded at the sides. Elytra 

 ending more in a point ; of a somewhat elliptic form. Eyes but little 

 prominent, or level with the head. 



\st division. — Elytra with parallel sides. 



A. Thorax contracted before the anterior margin, which 

 consequently appears elevated (no British species.) 



B. Thorax not contracted before the anterior margin. 



1. Elytra set with little bristles. 



* Elytra with a slight apical callus. 



(no British species.) 

 ** Elytra with the interstices level to the ex- 

 tremity, and the bristles rather close. 



(no British species.) 

 *** Elytra with the interstices level to the ex- 

 tremity, and with long, white, scattered bristles. 

 a. Elytra yellowish, with spots of dark 

 brown hispidulus. 



2. Elytra not set with little bristles. 



* Forehead level, with a simple linear furrow, 

 continued on the rostrum. 



a. Thorax shorter than broad meliloti. 



♦• Forehead excavated with a deep pit. 



a. Elytra with a white shoulder spot tiumekalis. 



2n6i division. — Elytra perceptibly broader after the middle 

 than iu the upper third. Eyes level with the head. 



(no British species.) 



{To be continued.) 



