LeConte.J CLEONDfl. 145 



2. Prosternum without spines in front of the coxae, 3. 



Prosternum armed with short spines in 



front of the coxae CENTROCLEONTJS. 



3. Beak strongly carinate, third joint of hind 



tarsi not spongy beneath STEPHANOCLEONTJS. 



Beak feebly carinate, third joint of hind 

 tarsi broad, spongy beneath CLEONOPSIS. 



4. Hind tarsi with third joint shorter, emar- 



ginate, not spongy beneath CLEON ASPIS. 



Hind tarsi with third joint broader, bi- 

 lobed, spongy beneath CLEONTJS. 



CENTROCLEONUS n. g. 



Body oblong, more robust than usual in this tribe, above very coarsely 

 sculptured. Beak stout, somewhat longer than the head, a little wider at 

 tip, usually carinate, and broadly bisulcate above, tip not emarginate; 

 antennal grooves suddenly deflexed, commencing not very near the tip. 

 Mentum large, flat, gular peduncle very short and broad ; neck finely trans- 

 versely striate, with a deep median groove; eyes transverse, acute beneath, 

 finely granulated. Antennae geniculate, scape slender, equal to funiculus, 

 which has six distinct joints, first and second nearly equal, third to sixth 

 shorter, rounded, seventh forming part of the club. Prothorax wider than 

 long, sides parallel, suddenly and strongly angulated near the tip, which is 

 then strongly narrowed and constricted; postocular lobes broad, fringed ; 

 prosternum flattened, with an acute tubercle in front of each coxa; there 

 are also two small prominences between the coxae. Mesosternum shorter 

 than first ventral; intercoxal process of abdomen broad rounded; 3-5 seg- 

 ments together scarcely longer than second. Legs moderate, terminal 

 hooks of tibiae small; tarsi hairy but not spongy beneath; hind tarsi with 

 second joint a little shorter than first, third one-half shorter, deeply emar- 

 ginate ; claws approximate, not connate. 



Conspicuous by the form of the prothorax, and very rough sculpture of 

 upper surface. The species are rare, and may be distinguished as follows: 

 Elytra coarsely punctato-striate 2. 



" more finely " " ; beak not carinate 4. molitor. 



2. Pubescence intermixed with short hairs 3. 



'" " " long " ; alternate in- 

 terspaces of elytra elevated 1. pilosus. 



3. Beak strongly carinate 2. angularis. 



" feebly " 3. porosus. 



1. O. pilosus. n. sp. 



Black, upper surface of beak, and above the eyes, sides of prothorax, 

 and greater part of elytra densely clothed with gray hair, intermixed with 

 long erect yellowish hairs; head and beak coarsely punctured, the latter 

 with two broad grooves and an obtuse median carina; prothorax covered 

 with large very deep foveae, sub-carinate at the middle and depressed at base, 

 sides broadly subsinuate; elytra with rows of very large punctures, alter - 

 PKOC. AMER. PIIILOS. soc. xv. 96. s 



