BY ARTHUR M. LEA. 207 



Femoral emargination with a supplementary tooth 

 or granule. 



Rostrum perfectly straight jjorcatus, Er. 



Rostrum slightly curved , hidentatns, n.STp. 



Femoral emargination normal. 



Scape inserted nearer base than apex of rostrum aherran>i, n.sp. 

 Scape inserted nearer apex than base. 



Elytra with irregular interstices xemiporcatus, Er. 



Elytra with regular interstices. 



Intermediate segments of abdomen each 



larger than 2nd rentralii, n. sp. 



Intermediate segments each equal to 2nd aratu-s, Pasc. 



Intermediate segments combined about equal 

 to 2nd. 

 Interstices flattened or rounded on basal 

 half of elytra.* 

 Punctures sometimes concealed by 



clothing jioridus, Pasc. 



Punctures not at all concealed. 

 Interstices similar throughout. 



More than 3 mm. in length rompactuH, n.sp. 



Less than 3 mm... castaneus, n.sp. 



Interstices triangularly raised posteriorly. 

 Elytra on basal half scarcely striate, 

 punctures clearly defined. 

 Apical segment of abdomen with a 



few large punctures adipatwi, n.sp. 



Apical segment densely punctate... jjoro^uji, n.sp. 

 Elytra striate, punctures not sharply 

 defined. 

 Prothorax clothed. 



Scape passing apex of rostrum impolitiLs, n.sp. 



Scape not passing apex ?eK?ws', n.sp. 



Prothorax not at all or scarcely 

 visibly clothed. 

 Metasternum with a pad of white 



hairs on each side peclorali>>, n.sp. 



Metasternum normally clothed. 

 Metasternal episterna with 

 regular punctures. 



* This does not include the lateral interstices, which are sometimes 

 triangularly raised; triitis is intermediate, only the suture and two inter- 

 stices on each side of it being flattened on the basal half. 



