Coleopterolorjical Notices, VI. (;1T 



Tlie base straiglit and as wide as that of the elytra; body broadly oval 



and stronj^lyconvex C'ybotUN 



Tlie base straight and narrower than that of the elytra: body cJoDKate 



and subdepressed .>Iecy sill ii s 



Tlie base evenly arcuate; body narrow and convex, densely fimbriate at 



the sides AconobiiiM 



Scutellum very short and broad, not entering the disk of the elytra; body 

 always completely apterous, the anterior tarsi never dilated in the male. 

 Prothorax not at all fimbriate at the sides. 



Elytra not sulcate, the antennie stout, generally feebly and \ei y irradu- 



ally incrassate toward tip and without an abrupt club ( oiiibilis 



Elytra sulcate. 



Antcnntc with an abrupt three-jointed club; elytral intervals convex 



and asperate \ocibiote8 



Antennae with a feebly differentiate<l club; elytral intervals fxmvex and 



simply punctate; prothorax not narrowed behind Toiiibiiis 



Antenna; not described; elytral intervals acutely costiform : jirothorax 



narrowed behind Toiiit>iaste!li 



Prothorax den.selj' fimbriate along the lateral edges. 



Anterior tibiae narrow and non-f os.sorial ; body narrow and piirallel. 



Coiiibiosoma 



Anterior tibiaj broadly triangular and compiressed; body stout ami (iMoii;^- 



oval \'otibiiis 



In this table the first five genera and Conibiosoma remain with 

 the scope originally given them (Col. Xot. II, p. 409;. Aconobius 

 is founded upon Conibioaoma laciniatrx (Col. Not. 111. p. 64), 

 and Tonibiastes has for its type Notibius costipennis Horn, re- 

 cently' described from Lower California (Col. Baja Cal.. p. 430). 

 The other genera are separately alluded to below. 



The scheme of classification originalU' followed and more re- 

 cently maintained by Dr. Horn for this tribe, can scarcely be 

 regarded as coming within tlx- doiDJiiu of scientific taxonomy and 

 will ultimately have to be discarded. 



tO.MBirS Lee. 



The species of this genus can be assigned to three subgenera, 

 which are widely distinct among themselves in point of general 

 appearance, as follows : — 



Head parallel at the sides near the base; basal angles of the prothorax not 

 rounded and nearly right. 



Body i^arallel, the elytra subeijual in width to the prothorax I 



Bod\- oval the elytra inflated and much w ider II 



Head prominent at the sides before the eyes; body stout, parallel and oblong; 

 basal angles of the prothorax obtu.se and bluntly rounded HI 



