176 THE SHORTER SCIENTIFIC PAPERS 



the form of striae represents a more primitive condition, 

 so far as the Coleoptera are concerned, than the irregular 

 arrangement, the trend of migration in the group is clearly 

 indicated. 



The two species found within the limits of the United 

 States and Canada may be easily separated by the follow- 

 ing characters. 



Table of Species. 



Antennae with six distal segments black; disk of each 

 elytron black with a narrow pale yellow border some- 

 times obsolete along the suture; underside uniformly 

 pale yellow. S. hispidus. 



Antennae with seven distal segments black; dorsal surface 

 of the body uniformly pale yellow except the eyes; 

 abdomen and metathorax beneath with large black 

 central area. S. blatchleyi. 



Stenotarsus blatchleyi^ n. sp. 



Uniformly light yellow in color with the exception of 

 the seven distal segments of the antennae, the eyes, and a 

 central area covering the greater part of the underside of 

 the abdomen and the metathorax, black; clothed with 

 long yellowish hairs. 



Form elongately oval, the elytra gradually narrowed 

 behind so that an acuminate appearance is presented; legs 

 comparatively short; antennae extending slightly beyond 

 the posterior margin of the pronotum, the first segment 

 somewhat elongate, second globose, third to seventh seg- 

 ments slightly increasing in length, the sixth and seventh 

 segments distinctly longer than broad, the eighth segment 

 globose, and the ninth, tenth and eleventh segments form- 

 ing a club the length of which is approximately equal to 

 the length of segments three to eight inclusive; distal seg- 

 ment elongately oval and acuminate at tip. 



Pronotum transverse with posterior angles slightly 

 acute, decidedly narrowed anteriorly, central area convex, 

 marginal lines distinct, longitudinal sulci scarcely attain- 

 ing the middle, slightly convergent anteriorly, fine basal 

 sulcus almost in contact with the posterior margin. 



Scutellum punctuate, broadly triangular; elytra with 



