Staphylinidce of the Amazon Valley. 327 



tion of the front part of the clypeus, which is shining and 

 not so black as the posterior parts ; the front part with 

 some coarse punctnres, the middle part without punctua- 

 tion, the vertex with obsolete but rugose and dense 

 punctuation. Thorax quadrate, scarcely longer than 

 broad, straight at the sides ; its surface quite dull, and 

 with a very obsolete punctuation. Elytra a little longer 

 than the thorax, quite dull, closely and moderately coarsely, 

 rugosely punctured. Hind body moderately coarsely and 

 closely punctured, the extremity obscurely reddish. Legs 

 yellow, with the tibiae slightly infuscate. 



Ega ; a single male specimen. The apical portion of 

 the 7th ventral segment is smooth, being quite free from 

 punctuation or pubescence, and shows no trace of emargina- 

 tion ; the ventral plate of the 8th segment is enfolded and 

 concealed by the dorsal plate ; it is elongate and slender 

 (when dissected out), its basal portion only slightly broader 

 than the apical half, and it is furnished at the apex with a 

 small curved appendage. 



13. Pinojjhilus extremus, n. sp. Niger, opacus, anten- 

 nis, palpis, pedibusque pallidis ; capite anterius rufescente ; 

 thorace oblongo, basin versus angustato, crebre sat fortiter 

 sed minus profunde punctato ; elytris omnino opacis, pro- 

 funde sat fortiter et crebre ruguloso-punctatis ; abdomine 

 apicem versus rufescente. Long. corp. 6 lin. 



Mas : abdomine segment© 7° ventrali apicem versus par- 

 cius punctato, apice ipso rotundato. 



Antennai slender, moderately long ; 3rd joint distinctly 

 longer than 2nd. Head with the front part red, covered 

 with a very dense and fine punctuation, which becomes 

 more sparing towards the front, so that it is there shining ; 

 also with some coarse punctures on each side in front of 

 the middle, and with the vertex coarsely but not deeply 

 punctured. Thorax about as long as broad, distinctly 

 nan'owed behind, dull, coriaceous, and with rather coarse 

 but only little impressed punctures, which are rather more 

 distinct about the middle than elsewhere ; there is no 

 definite longitudinal space free from these punctures, but 

 just in front of the base is a small, shining, longitudinal 

 elevation. The elytra are slightly longer than the thorax, 

 quite dull black, obscurely reddish at the extremity, covered 

 with a rather deep, but only moderately coarse and close 

 punctuation. Hind body reddish towards the extremity. 



