Staphylinidce of tlie Amazon Valley. 309 



Very closely allied to T. recta; rather more slender, 

 3rd joint of antennae shorter, the front parts more shining. 



5. Tcenodenia dubia, n. sp. Nigra, nitida, capita, 

 thorace, elytrisque viridi-asneis ; palpis, antennarum basi 

 tarsisque anterioribus testaceis ; capite thoraceqne fortiter, 

 elytris parce subtiliter, puuctatis. Long. corp. 6^ lin. 



Mas : abdomiue segmento 7° ventrali apice late, pauluin 

 profunde emarginato. 



Elongate and narrow ; autenna3 slender, 1 1 lin. in length, 

 black, Avith the two basal joints yellow and infuscate iu- 

 Avardly ; 3rd joint one and a half times as long as 2nd. 

 Head small, coarsely and densely punctured, except on a 

 space in front of the vertex. Thorax £ lin. in length, and 

 hardly broader than long, very little roimded at the sides, 

 and slightly narrowed behind. Scutellum with a few fine 

 punctures. Elytra 1 lin. in length. Hind body nearly 

 concolorous at the extremity. 



Ega ; a single male. 



This may possibly prove to be only an individual varia- 

 tion of TcBnodema lenta ; it differs only from it in being 

 rather smaller, and having the front jjarts rather narrower, 

 the thorax being a little less roimded at the sides, rather 

 more coarsely pimctured along the middle, the punctua- 

 tion of the hind body rather less, and the legs a little 

 shorter. 



6. Tcenodema quadi-ata, n. sp. Nigra, nitida, capite, 

 thorace, elytrisque viridi-jeneis, antennarum basi, palpis, 

 tarsisque anterioribus testaceis ; antennis apice piceis ; 

 capite thoraceque fortiter punctatis, elytris subtiliter 

 puuctatis, punctis suturalibus magis numerosis. Long, 

 corp. 6 lin. 



Antenufe about 1^ lin. in length, the two basal joints 

 yellow, the intermediate ones nearly black, the apical joint 

 pitchy yelloAv ; 3rd joint about one and a half times as long 

 as 2nd. Head small, rather closely punctured, a space 

 in front of the vertex impunctate, the punctures on the 

 front part forming a patch in the middle and a patch on 

 each side, but the three patches only a little separate; 

 vertex rather finely punctured. Thorax not quite so long 

 as broad, nearly | lin. in length, a little rounded at the 

 sides, not narrowed behind, shining, coarsely punctured, 

 the punctures more sparing towards the margins, and 



