Jaync] *>'^'" [June 16, 



the tibise ; first joint of tarsi ]ong, second, tliird and fourth successively 

 shorter, together equaling the fiflh. 



The elytra of all the species, in our fauna at least, are fasciate. The 

 anatomical characters by which to recognize this genus are : the distinct 

 antennal foss*, characteristic antenntc, prosternum not lobed in front, the 

 broad, deeply emarginate or entirely divided mesosternum, and the 

 moderately wide and long posterior coxal plate. 

 '' Our species may be arranged as follows : 



Eyes entire. 



Antennal fossa near prosternal suture simplex. 



Antennal fossa sub-marginal. 

 Prosternal tip broad. 



Mesosternum broadly divided ornatum. 



Prosternal tip narrow. 



Mesosternum deeply emarginate sternale. 



Eyes emarginate in front inclusum. 



T. simplex, n. sp. Oblong, black, clothed with black semi-erect pubes- 

 cence. Elytra black, with three sinuous bands and apical spot rufous 

 witli white pubescence. Head coarsely punctate, front covered with 

 coarse yellow hair. Ej-es entire, moderately prominent. Antennae piceo- 

 testateous, joints 1 and 2 rufous. Thorax coarsely, not very densely, punc- 

 tate, with whitish-yellow pubescence at sides and base, disc less pubescent. 

 Scutellum pubescent. Elytra coarsely punctate, black, with three irregu- 

 lar bands of red, bearing semi-erect Avhitish pubescence. Body beneath 

 black, coarsely punctured, clothed with short recumbent cinereous pubes- 

 cence. Antennal fossa limited to a small space near prosternal suture. 

 Prosternum long, moderately broad, tip prolonged, completely dividing 

 the mesosternum. Abdominal segments black, margined with rufous, 

 clothed with cinereous pubescence. Legs piceous, tibiiB and tarsi rufous. 

 Length .20 inch ; 5 mm. (Figs. 51, 52.) 



3fale unknown. 



Female. Antenna? with joints 1 and 2 large, almost equal, 3-6 small, 

 globular, 7-11 forming the club, which is fusiform. 



The distinguishing characters of this species are the completely divided 

 mesosternum, the entire eyes, and antennal fosste limited to the prosternal 

 sutures. It is of larger form than any of our known species. Found in 

 the Western States. 



T. ornatum Say. Oval, black, clothed with semi-erect, black pubescence. 

 Elytra with three irregular confluent bands and apical and basal spots of 

 gray pubescence. Head with front densely and coarsely punctate, clothed 

 with erect black pubescence, eyes entire, moderately prominent. Antenntv 

 testaceous. Thorax moderately sparsely punctate. Scutellum pubescent. 

 Elytra coarsely, moderately sparsely punctate, black, clothed with black 

 pnl)escence and with threeirregular bands of red, bearing gray pubescence. 



