AMERICAN COLEOPTERA. 415 



genus. He has established sections on the ciliation of the posterior 

 tarsi in the % , a character very difficult to verify in dried specimens. 

 The form of the anterior tarsi in the % seems to afford some charac- 

 ters, but I have not been able to establish satisfactory sections. 



Anterior claws compressed, elongate, or obtusely dentate in male. 

 Inner margin of tibise impunctate. 



Elytra black, slightly bronzed with a lateral spot yellow confer tug 



Elytra brown, more or less pale. 



Male tarsi narrowly dilated, posterior legs black, sculpture very fine. 



ovoidens. 

 fobsoletus. 



Male tarsi broadly dilated ; ODliteratns. 



! griseipennis. 



Inner margin of posterior tibia with a row of punctures. * ° SUS * 



Metasternum hardly emarginate. 

 Posterior tibise irregularly punctate, claws small and weak 



Black strigose discus. 



Bronzed, sub-convex, granulate lutosu* 



Shining black, with a yellow lateral spot Walsiiighami." 



Metasternum deeply emarginate. 

 Lacinise of «etasternum strongly narrowed, form broad, depressed. 



T . . brevicollis. 



Lacmise sub-triangular. 



( seriatus. . 



Elytra black or brassy black \ parallels. 



Elytra brownish, sub-opaque. mtersectus. 



Elytra very finely granulate infnscatns. 



Elytra coarsely reticulate SCapuIaris! 



Claws of male simple. 

 Inner margin of posterior tibise impunctate. 



Claws very small and weak , pnnctatns. 



Elytra black, shining, smooth, with a yellow sub-apical vitta. 



■40, broad in front, elytra finely granulate Stagninus. 



•30, ovate, elytra with large areolae ohtusatus! 



Elytra brown, shining, nearly smooth f Pnnctulatas. 



1 inscriptas. 



Elytra brown, recticulate, sub-opaque r strigulosas. 



T „ 1 fliubriatus. 



Inner margin of tibise with a row of deep punctures. 



Posterior tibise irregularly punctate tristis. 



Prosternal process depressed arcticus. 



Prosternum convex sub-carinate. 



Thorax finely margined, surface shining f hyP«»»»elas. 



I gagates. 

 Thorax with a broader margin, sub-opaque; elytra with f lugeus. 



a lateral yellow spot j sataralis. 



