618 Coleopterological Notices, VI. 



The species are mocleratel}' numerous and those known to me 

 may be readily identified by the following characters : — 



Subgenus I. 

 Conibius Lee. 

 Humeral angles of the elytra more or less distinctly prominent. 



Body narrow and elongate; pronotum densely punctate... parallelllS Lee. 

 Body less slender, the elytra more deflexed and A-ertical at apex 

 Bicolored, the pronotum sparsely punctured toward the middle. 



seriatuf^ Lee. 

 LTnicolorous, the pronotum more coarsely and densely punctured; body 



nearly t^vice as large guaclalupeiisis Csy. 



Humeral angles rounded or at least obtuse. 



Antennae moderately long; i^rothorax nearly one-half wider than long and 



very feebly narrowed toward base miiforiiiis Csy. 



Antennie shorter; prothorax much more transverse, four-fifths wider than 

 long, strongly narrowed toward base, the side margins narrowly sub- 

 explanate 1)riiiiiiipes Champ. 



Subgenus II. 

 Ooconibius n. sg. 

 Elytra oval, the lateral edges visible throughout from above and finely re- 

 flexed, more noticeably so near the base and toward apex opacus Lee. 



Subgenus HI. 

 Euconibius u. sg. 



Pronotum broadlj' subexplanate toward the sides; fine side margins of the 

 elytra visible throughout from above as usual but not reflexed. 



gagates Horn 

 Notibius rejiexus, recently described by Dr. Horn from Lower 

 California (Col. Baja Cal., p. 429), cannot be distinguished from 

 opacus by any detail given in the original diagnosis. 



IVOCIBIOTES n. gen. 



The species of this genus have a characteristic facies, which will 

 render their identification tolerably certain. The six representa- 

 tives known to me may be recognized by the following table : — 



Basal angles of the prothorax rather broadly oblique at the base, large and 

 posteriorly prominent ; pronotum more obscurely sculptured, the sides 

 less rounded. 

 Third autennal joint fully twice as long as wide. 

 Ely tral sulci deep ; legs rather slender. 



Pronotum somewhat coarsely and very closeh* punctured. 



graiiulatus Lee. 



