Stapliyliaid(2 of the Amazon Valley. 329 



elongatls, rufescentibus, basi cum peclibvis palpisque pal- 

 lide testaceis. Long. corp. 8 lin. 



jNIas : abdomine segmento 7° ventrali longlus producto, 

 aplce angusto, parum emarginato. 



This species resembles extremely the P. bisulcatus, but 

 differs by its male characters. In other respects it may 

 be said to resemble that species exactly ; the single speci- 

 men I have seen exhibits some slight differences in sculp- 

 ture, the punctuation of the upper surface being a little 

 coarser ; this is more notable on the thorax than elscAvhere, 

 so that the coarse punctures are more confluent, and the 

 shining interstices more reduced in extent. 



I have no more special locality for this species than 

 " Amazons," but I suspect it to be from the upper portion 

 of the river. 



16. Pinophilus laxus, n. sp. Niger, nitidus, antennis, 

 palpis, pedibusque testaceis, geniculis nigris ; thorace 

 basin versus angustato, crebre fortiter punctato ; elytris 

 fortiter punctatis ; antennis elongatis, tenuibus, articulo 

 ultimo pr^ecedente paulo longiore. Long. corp. 7 lin. 



Mas : antennis articulo ultimo magis elongato ; abdo- 

 mine segmento 7° ventrali elongato, apice angusto, obsolete 

 emarginato. 



Antennae slender and elongate, yellow ; 3rd joint one 

 and a half times as long as 2nd. Mandibles pitchy, Avith 

 a long tooth ; palpi pale yellow. Head black, shining, 

 except at the hind angles, with a few punctures imme- 

 diately behind the labrum ; the middle part with a patch 

 of coarse distant punctures, and the vertex with sparing 

 coarse punctures. Thorax about as long as broad ; the 

 sides a little rounded, and distinctly narrowed behind ; 

 transversely convex, black and shining, rather coarsely and 

 closely punctured ; the punctures not so close in the middle 

 at the base, and leaving also the hind angles, and a small 

 space near the front angles, free. Elytra ample, fully one- 

 third longer than the thorax, rather coarsely but not 

 closely punctured, shining black ; the pubescence fine, 

 sparing and very easily removed. Hind body rather 

 slender, sparingly punctured, but only slightly shining. 

 Legs rather long and stout, pale yellow, with the knees 

 infuscate. 



The male has the 7th ventral segment produced, narrow 



