382 Mr. D. Sharp's Cuntrlbutions to the 



remai-k, as is also the simple but peculiar form of the 

 feJea<>-us, this oi'gaii scarcely varying, moreover, in the 

 dilfercnt species. 



1. Osorius stipes, n. sp. Niger, sat uitidus, capite 

 coriaceo, subrtpaco, clypeo antice emarginato, et in medio 

 prominulo ; thorace parce punctato, medio breviter canali- 

 CLilato ; clytris strigulosis. Long. corp. 7 — 8^ lin. 



Head with the surface coriaceous, and sprinkled Avith 

 distinct punctures; the clypcus emarginate in front, so 

 that the anterior angles form blunt projections, but not at 

 all spinose, and also obtusely prominent in the middle ; 

 the temples, over and behind the eyes, Avith coarse distinct 

 riiga^, and some small rough elevations. Thorax much 

 broader than long; the sides much narrowed behind and 

 distinctly sinuate in fx'ont of the hind angles, which are 

 distinct and nearly right angles, but a little obtuse; the 

 sides distinctly im])rcssed in front of the hind angles; so as 

 to make the lateral margin appear strongly raised there ; 

 the surface entirely coriaceous, but mox'e finely so than the 

 head, and with distinct though sparing punctures, and 

 Avith a short, fine channel along the middle. Elytra dis- 

 tinctlv lono-er than thorax, entirelv covered Avith shallow 

 irregular rugie ; on the underside the prominence of tin? 

 prosternum is very marked, the mesosternum distinctly 

 carinate in front of the coxfe. The hind body with very 

 few seta\ the apical segment coarsely strigose, especially 

 at the sides, and Avitli strongly marked tubercles. 



Para, Ega ; eight individuals. 



Obs. — This is the largest species of the genus yet 

 known ; the structure of the front of the head readily dis- 

 tinguishes it from (). atcr. 



2. Osorius nitcns, n. sp. Cylindricus, niger, nitidus, 

 antennis pedibus(|iu' ])iccis ; capite ])ornitido, parce sat 

 fortiter punctato, clyi)eo utrin(pie cinai'giuato ; thorace 

 nitido, coriaceo, ]iarcc f()rtit(!r ])unctato, angulis poste- 

 rioribus obtusis, minus jjrominulis ; clytris nitidis, ruji'u- 

 losis, et parce obsoh'te ])unctatis ; abdomine supra la^vi- 

 gato. Long. corp. 5 lin. 



Eront of clypcus dislinctly notched on each side, the 

 latciul angles ojdy slightly more ])rominent than the 

 middli'. Head very shining, and Avith the front part not 

 in the least coriaceous ; the surface sparingly sprinkled Avith 



