StaphylinidcE of the Amazon Valley. 335 



Narrow, subcylindric. Antenna3 sliort, geniculate ; the 

 basal joint as long as the three or four folloAving joints 

 together, 2nd twice as long as 3rd, 7 — 10 similar to one 

 another, bead-like. Palpi yellow, long, the apical joint 

 slender and elongate. Head shining, rather paler than 

 the other parts ; pale yelloAv, with a single obscure punc- 

 ture on the front edge of the clypeus, with a distinct im- 

 pression on each side, inside the antennal tubercle, in Avhich 

 are two punctures ; behind these with two other punctures, 

 and two or three punctures on each side at the extreme 

 back part ; the temporal angles less developed than in the 

 other species of the genus. Thorax transversely convex, 

 slightly curved at the sides, a little narrowed behind, a 

 good deal longer than broad ; on each side with a row of 

 four or five punctures along the middle, and outside these 

 three or four other punctures on each side. Elytra longer 

 than the thorax, reddish, shining, coarsely, moderately 

 closely punctured. Hind body reddish, with the 6th and 

 7tli segments infuscate in the middle, and their hind 

 margins very pale ; the segments are rather closely punc- 

 tured, but shining. The legs are white ; the front tarsi 

 very broad, the hinder ones slender and elongate. 



In the male the front tibiae are furnished at the extre- 

 mity (or perhaps the tarsi at the base) with a stout process, 

 which projects inwards, and is broader at the apex than 

 the base ; the ventral plate of the 7th segment is slightly 

 produced in the middle, that of the 8th segment is in- 

 ternal ; the sides of the dorsal plate greatly overlapping 

 one the other at the base. 



Tapajos ; two specimens. 



This is a very curious species, and will probably form a 

 distinct genus. 



24. Pinophilns abax, n. sp. Capite thoraceque niger- 

 rimis, pernitidis ; elytris rufis, grosse punctatis ; abdomine 

 opaco, nigro, nigro-pubescente, segmentis basalibus late- 

 ribus cinereo-pubescentibus, segmento 7° pallido, medio 

 nigro-macvdato ; autennis, palpis, pedibusque albidis. 

 Long. corp. 5\ lin. 



Mas : abdomine segmento 7" ventrali valde producto. 



AntennjB geniculate, white; 1st joint as long as the 

 three or four following joints together ; 2nd joint a little 

 longer than the 3rd, which is almost equal to the 4th ; 

 joints 4 — U slender, each a little shorter than its prede- 



