186 Coleopterological Notices, III. 



Beak broad and more or less flat ; pattern of the elytral maculation obliquely 

 subfasciate ; protborax always constricted near the apex. 

 Beak strongly tricarinate, the lateral carina? frequently obsolete. 



Stephanocleonus 



Beak not strongly carinate, generally completely non-carinate ... Apleurus 



Beak nearly cylindrical, often obsoletely carinate ; form of body intermediate 



between Apleurus and Lixus, the pattern of elytral ornamentation always 



more or less vittate ; prothorax generally not constricted at apex. 



Cleonidius 



The species may be outlined as follows : — 



Subgen. Stephanocleonus Mots. 



Humeri obliquely truncate ; vestiture extremely short and pruinose. 



plumbeus Lee. 

 Humeri rounded ; vestiture longer, much denser and paler... cristatus Lee. 



Subgen. Apleurus Chev. (type fossus). 

 Cleonopsis Lee. ; Cleonaspis Lee. 



Robust, the beak obsoletely carinate, the vestiture dense, cinereous, the elytra 

 each with two large oblique subdenuded spots and a subapical slightly 

 denuded area ; pubescent pads of all the tarsi quite distinct, but much less 

 so on the posterior pillvereus Lee. 



Slightly less robust, the beak completely non-carinate, smaller in size ; vesti- 

 ture very dense, ferruginous, the maculation extremely obscure but nearly 

 as in pulvereus ; legs and tarsi rather more slender, the pubescent pads 

 rather small, and, on the posterior, almost obsolete in the male but visible 

 on the third joint in the female llltiilciitlis Lee. 



Note. — It will be observed that similar differences in the extent of the tarsal 

 brushes are observable in the next subgenus, and have been alluded to by 

 LeConte (Proc. Am. Phil. Soc, XV, p. 148). 



Subgen. Cleonidius n. subg. 

 Cleonus Lee. ; Apleurus Chev. (pars — " especes lyxiformes"). 



Sec. I. — Second joint of antennal funicle much shorter than the Jirst ; body thicker 

 and more oval; beak long, very thick, distinctly dilated at apex. 

 Prothorax constricted at the sides near the apex. 



Constriction strong ; vestiture extremely dense and rather long, completely 

 concealing the punctuation, denuded on the elytra in small rounded 

 sparsely placed spots, which are only distinct near the suture and lateral 

 margin ; prothorax deeply excavated in the middle toward base. 



collaris Lee. 



Constriction feebler and nearer the apex; vestiture very short and sparser, 



not concealing the punctuation ; elytra with a broad imperfectly denuded 



sublateral and narrower subsutural vitta, and often sparsely marmorate 



with small spots of denser pubescence grand irostris n. sp. 



